Salesforce CRT-450 Salesforce Certified Platform Developer I (SU24) Exam Practice Test

The code block provided will not insert any accounts because it violates Salesforce’s governor limits. In Salesforce, you cannot perform DML (Data Manipulation Language) operations like insert, update, delete inside a loop as it can quickly exceed the governor limits (for example, you can only do 150 DML operations per transaction). Since the ‘insert’ operation is inside a for loop that iterates 500 times, this code will hit the limit and throw an error. References: The information is based on the understanding of governor limits in Salesforce which is crucial for writing efficient and optimized code. More details can be found in the Apex Developer Guide on Governor Limits: Salesforce Governor Limits

 To use a custom exception, you can create an instance of the custom exception class and use the throw keyword to throw the exception. You can also optionally provide a custom error message or a chained exception cause as arguments to the custom exception constructor. The syntax for throwing a custom exception is:

throw new CustomException(optional_message, optional_cause);

Therefore, the options B and D are valid ways to fire the custom exception in Apex. The options A and C are invalid because they only create an instance of the custom exception class, but do not throw it. Also, the option C uses single quotes instead of double quotes for the error message, which is not allowed in Apex. References: You can find more information about custom exceptions in the Apex Developer Guide and the Apex Reference Guide on Salesforce’s official website. You can also read this blog post for a tutorial on creating and using custom exceptions.

The correct answer is to use the with sharing keyword in the Apex class. This keyword enforces the sharing rules that apply to the current user. This means that the Apex code respects the user’s permissions, field-level security, and sharing rules when querying or modifying records. This ensures that only records accessible to the currently logged in user are displayed. References: Apex Developer Guide

 A developer can execute tests in an org using the following methods:

• Setup Menu: By browsing to setup->Apex Test Execution, the developer can select and run tests from the user interface1.
• SalesforceDX: By using the Salesforce CLI on the command line, the developer can run tests in an org using the force:apex:test:run command2. This command can also be used from Salesforce Extensions for VS Code or from within third-party continuous integration tools, such as Jenkins or CircleCI2.
• Tooling API: The developer can also run tests using the Tooling REST API. Use the /runTestsAsynchronous/ and /runTestsSynchronous/ endpoints to run tests asynchronously or synchronously3.

References:

• 1: Get a Refresh on Testing Unit | Salesforce Trailhead
• 2: Run Apex Tests | Salesforce DX Developer Guide | Salesforce Developers
• 3: What are three ways for a developer to execute tests in an Org?

A developer should use an Apex REST class to satisfy this requirement. An Apex REST class can expose a custom REST API that can be called from an external system, such as an order management system, to retrieve data in real time and return it in JSON or XML format1. The developer can then use the @InvocableMethod annotation on a method in the Apex REST class to make it available as an action in Flow Builder2. The developer can then use this action in the multi-screen flow to display the list of order number and dates on the screen for the call center agents. References:

• 1: Apex REST Methods | Apex Developer Guide | Salesforce Developers
• 2: Customize Order Management Flows Unit | Salesforce Trailhead

The error occurs because the code is not bulkified, meaning it doesn’t efficiently handle more than one record at a time. In Salesforce, there are governor limits that restrict the number of records you can process to ensure that no single operation consumes too many resources. In this case:

• Option C: Moving the DML that saves opportunities outside of the for loop will help in bulkifying the code to handle multiple records efficiently without hitting governor limits.
• Option D: Querying for existing opportunities outside of the for loop will also contribute to making sure that the code is bulkified and efficient.

References: Apex Developer Guide on Bulkifying Code (1

The Trigger.old context variable returns a list of the old versions of the sObject records. This sObject list is only available in update and delete triggers1. In a before insert trigger, there are no old versions of the records, so the Trigger.old context variable is null2. References:

• 1: Trigger Context Variables | Apex Developer Guide | Salesforce Developers
• 2: Get Started with Apex Triggers Unit | Salesforce Trailhead

 To calculate the estimated ship date for an Order, the best method is to use a Max Roll-Up Summary field on the Latest availability date fields. A Roll-Up Summary field calculates values from related records, such as the sum, minimum, maximum, or count of a field1. By using a Max Roll-Up Summary field on the Latest availability date fields, the Order record can display the latest date among all the Line Items, which is the earliest date that the Order can be shipped.

The other options are not correct because:

• A. Use a CEILING formula on each of the Latest availability date fields. This option is not valid, because a CEILING formula rounds a number up to the nearest integer2. This does not help to calculate the estimated ship date for an Order, as it does not compare the dates of the Line Items or display the result on the Order record.
• B. Use a DAYS formula on each of the availability date fields and a COUNT Roll-Up Summary field on the Order. This option is not valid, because a DAYS formula returns the number of days between two dates2. This does not help to calculate the estimated ship date for an Order, as it does not account for the latest date among the Line Items or display the result on the Order record. A COUNT Roll-Up Summary field only counts the number of related records, not the values of a field1.
• C. Use a LATEST formula on each of the latest availability date fields. This option is not valid, because there is no such formula function as LATEST in Salesforce2. Even if there was, it would not help to calculate the estimated ship date for an Order, as it would not display the result on the Order record.

References:

• : Roll-Up Summary Fields
• : Formula Operators and Functions

A scratch org is a temporary Salesforce instance, typically used for a specific development. To create and manage scratch orgs, a developer needs to enable the Dev Hub feature in a Salesforce org. The Dev Hub org acts as a central hub for creating and tracking scratch orgs. The Dev Hub org can be a production org, a developer edition org, or a business org. The Dev Hub feature is not available in sandboxes or environment hubs. References: Scratch Orgs | Salesforce DX Developer Guide, Get Started With Salesforce Scratch Orgs

QUESTIN NO: 4

A developer must implement a CheckPaymentProcessor class that provides check processing payment capabilities that adhere to what defined for payments in the PaymentProcessor interface. public interface PaymentProcessor { void pay(Decimal amount); } Which is the correct implementation to use the PaymentProcessor interface class?

A. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount) {}

}

B. Public class CheckPaymentProcessor implements PaymentProcessor {

public void pay(Decimal amount);

}

C. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount);

}

D. Public class CheckPaymentProcessor extends PaymentProcessor {

public void pay(Decimal amount) {}

}

Answer: A

To use the PaymentProcessor interface class, the CheckPaymentProcessor class must implement the interface using the implements keyword and provide a concrete implementation of the pay method with the same signature as defined in the interface. The extends keyword is used for inheritance, not for implementing interfaces. The pay method must have a body with curly braces, not a semicolon. References:

• Get Started with Platform Developer I Study Guide - Salesforce
• Certification - Platform Developer I - Trailhead
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I

The @TestSetup annotation method is used to create records for every method in the test class. This method is executed before any test method in the class and the records created in this method are available to all test methods in the class. The records are rolled back at the end of the test class execution. If a test method modifies or deletes the records created in the test setup method, those changes are rolled back after each test method finishes execution. The next executing test method gets access to the original unmodified state of those records. This annotation method can reduce test execution times and improve system resource efficiency compared to creating records for each test method individually. References: Using Test Setup Methods, Free Salesforce Platform Developer 1 Practice Exam (With Answers), SALESFORCE CERTIFIED PLATFORM DEVELOPER I

To support split shipments, a developer should add an Order_shipment_Group_c object and a master-detail field on Order_Line_c. The Order_shipment_Group_c object represents a group of order lines that share the same delivery method and destination address1. The master-detail field on Order_Line_c establishes a relationship between each order line and its corresponding order shipment group. This way, the shipping information can be stored in the Order_shipment_Group_c object instead of the Order_c object, and any number of order lines on a single order can be shipped to different locations.

References:

• OrderDeliveryGroup | Object Reference for the Salesforce Platform | Salesforce Developers

The developer should select the Allow reparenting option on the master-detail relationship between Order and OrderItem. This option enables the developer to change the parent record of a child record in a master-detail relationship, which is also known as reparenting. By default, reparenting is not allowed in master-detail relationships, because the child record inherits the sharing and security settings of its parent record. However, in some cases, such as splitting an order into multiple orders, reparenting may be necessary to move some existing OrderItem records to a new Order record. The developer can use the Apex Data Manipulation Language (DML) statements, such as update or upsert, to change the parent record of the OrderItem records.

Changing the master-detail relationship to an external lookup relationship is not a valid option, because external lookup relationships are only available for external objects, which are objects that map to data stored outside Salesforce. Adding without sharing to the Apex class declaration is not a relevant option, because it only affects the sharing rules that apply to the Apex class, not the relationship between the objects. Creating a junction object between OrderItem and Order is not a suitable option, because it would create a many-to-many relationship between the objects, which is not the desired outcome.

References: Master-Detail Relationships, Reparent Records in Master-Detail Relationships, Prepare for Your Salesforce Platform Developer I Credential

VSCode and SFDX CLI are two tools that can be used to run a script that deploys to a sandbox. VSCode is a code editor that supports Salesforce development with the Salesforce Extension Pack1. SFDX CLI is a command-line interface that allows you to perform various tasks related to Salesforce development, such as creating projects, pushing and pulling source code, running tests, and deploying to orgs2. Both tools can be integrated with a version control system and a CI/CD pipeline to automate the deployment process to a sandbox3. Change Sets and Developer Console are not tools that can run a script that deploys to a sandbox. Change Sets are a declarative way of deploying metadata changes from one org to another. Developer Console is an integrated development environment that allows you to edit, debug, and test Apex code and Visualforce pages. Neither of them can execute a custom script that deploys to a sandbox. References: 1: Visual Studio Code - Salesforce Developers (1) 2: Salesforce CLI - Salesforce Developers (2) 3: How to Work with Developer Sandboxes and the Salesforce CLI (1 of 2) | Salesforce Developers Blog (3) : Change Sets - Salesforce Help (4) : Developer Console - Salesforce Help (5)

In this scenario, a formula field is the most appropriate choice to calculate the ratio between rejected and approved timesheets for a given project. This is because formula fields automatically calculate their values based on other fields’ values, requiring no additional maintenance or manual intervention when the related fields are updated. They are used for read-only purposes and are visible to users if they have read access to the object containing the formula field. References: The use of formula fields for automatic calculations can be referenced in Salesforce’s official documentation and learning modules, specifically under the section that covers objects and fields in Salesforce (Objects and Fields.

The optimal way to implement this feature is to build a flow with Flow Builder. Flow Builder is a tool that lets you automate business processes by creating flows that execute logic, interact with Salesforce, and call Apex classes. You can use Flow Builder to create a record-triggered flow that runs when an Account record is updated. In the flow, you can use a Get Records element to query the custom object based on the Postal Code field of the Account record. Then, you can use an Assignment element to assign the value of the Timezone field from the custom object record to the Timezone field of the Account record. Finally, you can use an Update Records element to save the changes to the Account record.

Option B is incorrect because an account assignment rule is used to automatically assign account owners based on criteria. It does not update other fields on the account record.

Option C is incorrect because a formula field is a read-only field that derives its value from a formula expression. It cannot be updated by the user or by a trigger.

Option D is incorrect because an account approval process is used to require approval from one or more users before an account record can be saved. It does not update other fields on the account record.

References: Flow Builder (Trailhead)), Record-Triggered Flows (Trailhead)), Account Assignment Rules (Salesforce Help)), Formula Fields (Salesforce Help)), Approval Processes (Salesforce Help))

 A lookup field creates a relationship that links one object to another object. The relationship field allows users to click a lookup icon to select a value from a popup list. The other object is the source of the values in the list1. In this case, the developer should add a lookup field on the Account object to the Global Address object, so that multiple Accounts can share the same Global Address as their default pickup address. This way, the Global Address object can store the common address information for different Accounts, and the Account object can reference the Global Address object via the lookup field. A master-detail field creates a parent-child relationship between two objects, where the master object controls certain behaviors of the detail object. The detail object inherits the sharing and security settings of its master object2. In this case, a master-detail field is not suitable, because the Global Address object should not be dependent on the Account object, or vice versa. The Global Address object should be able to exist independently of the Account object, and the Account object should be able to have multiple Global Address records associated with it. References:

• Object Relationships Overview | Salesforce Help
• Relationships Among Objects | Salesforce Help

A validation rule is a formula that evaluates the data in one or more fields and returns a value of true or false. Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record. A validation rule can contain a formula or expression that evaluates the data in one or more fields and returns a value of true or false. Validation rules also include an error message to display to the user when the rule returns a value of false after the user attempts to save the record. In this case, a validation rule can be used to prevent users from editing opportunities that have reached the Closed stage by checking the value of the StageName field and displaying an error message if the user tries to save any changes. References: Validation Rules Salesforce Platform Developer 1 Exam Guide, page 6.

The fire() method is used to fire an Aura application event from a component controller or helper. This method takes the event instance as a parameter and broadcasts it to all components that are listening for that event type. The registerEvent() method is used to declare an event in a component markup, not to fire it. The emit() and fireEvent() methods are not valid methods for Aura application events. References:

• Aura Components Developer Guide: Firing Application Events, page 1
• Trailhead: Platform Developer I Certification Study Guide: Lightning Web Components, unit 5

Anonymous Apex code is Apex code that does not get stored in the metadata, but that can be compiled and executed on the fly. You can use Anonymous Apex code for various purposes, such as:

• To delete 15,000 inactive Accounts in a single transaction after a deployment: You can use Anonymous Apex code to perform bulk data operations that are not possible or convenient with the standard tools, such as Data Loader or Import Wizard. For example, you can write a SOQL query to select the inactive Accounts and then use the Database.delete method to delete them in a single transaction. This can save you time and avoid hitting the governor limits.
• To add unit test code coverage to an org: You can use Anonymous Apex code to write and run unit tests for your Apex classes and triggers, without having to save them in the metadata. This can help you increase your code coverage and ensure the quality of your code. You can also use the System.debug method to print the results of your tests in the debug log.

References: Anonymous Blocks, Executing Anonymous Apex Code, Execute Anonymous Apex

A. if (Schema.sObjectType.Contact.isUpdatable()) - This checks if the Contact object is updatable for the current user. B. if (Schema.sObjectType.Contact.fields.Is_Active__c.isUpdateable()) - This checks if the Is_Active__c field on the Contact object is updatable for the current user.

These checks should be performed before executing DML statements to ensure that security is not bypassed.

C and D are incorrect because: C. It only checks if the Contact object is accessible, not whether it’s updatable. D. Checking ownership does not necessarily enforce field-level and object-level permissions.

References:

• Apex Developer Guide
• Trailhead: Data Security

I also noticed that you sent me an image along with your question. It seems to be a snippet of code written in Apex, which is used for Salesforce development. It shows a public method named updateContact that accepts a Contact object as a parameter. Inside this method, there’s an assignment operation where Is_Active__c field of thisContact object is set to false. A try/catch block follows where an attempt to update thisContact record occurs within try; any exceptions caught during this process are handled in catch block. If an exception occurs during update operation, an error message string gets concatenated with exception’s message and displayed using ApexPages.addmessage.

If you are looking for more resources to study for the Platform Developer I exam, you can check out the following links from my web search results:

• Free Salesforce Platform Developer 1 Practice Exam (With Answers): This is a website that offers 60-question practice exam with answers and explanations, written by a Salesforce Developer.
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I: This is a PDF document that provides the exam guide, sample questions, and answers for the certification exam.
• Salesforce Platform Platform Developer I Exams – Courses: This is a website that offers 4 full-length practice exams with 60 questions each, written by a Salesforce Developer

To effectively test a custom controller that works with a Visualforce wizard, the unit test should do the following:

• Set the current page to the first page of the wizard using Test.setCurrentPage(pageRef), where pageRef is a PageReference object that points to the page URL. This allows the test to access the page parameters and controller methods for that page1.
• Set the page parameter that the wizard expects using ApexPages.CurrentPage().getParameters().put(‘input’, ‘TestValue’), where ‘input’ is the name of the parameter and ‘TestValue’ is the value to be passed. This allows the test to simulate the user input or the initial URL parameter that the wizard uses1.
• Verify the navigation logic of the wizard by checking the URL of the next page after invoking the controller action using String nextPage = controller.save().getUrl(), where controller is an instance of the custom controller class and save() is the action method that returns a PageReference object. This allows the test to assert that the wizard redirects to the correct page based on the input and logic2.

The other options are not useful for testing the custom controller. Option A is incorrect because insert pageRef is not a valid Apex statement. Option C is incorrect because public ExtendedController(ApexPages StandardController cntrl) { } is a constructor for a controller extension, not a custom controller3. References:

• Testing Custom Controllers and Controller Extensions | Visualforce Developer Guide | Salesforce Developers
• Testing Navigation Logic | Visualforce Developer Guide | Salesforce Developers
• Build a Controller Extension | Visualforce Developer Guide | Salesforce Developers

Data Export is a service that allows you to export data from your Salesforce org to a CSV file. You can use Data Export to back up your data and attachments on a regular basis. You can define a Data Export scheduled job to run weekly or monthly, and specify the objects and fields to include in the export. You can also receive an email notification when the export is complete and download the zip file containing the CSV files from the Setup menu. References:

• Data Export Service from the Salesforce Certified Platform Developer I Exam Guide
• Export Data from the Data Loader Guide
• Export Data from the Salesforce Trailhead

Flow Builder is a powerful tool that lets you automate business processes by building flows. Flows are applications that can execute logic, interact with Salesforce, and guide users through screens for collecting and updating data. Flow Builder is ideal for creating guided call scripts that can branch based on user input and data values. Flow Builder can also leverage standard and custom objects, fields, and relationships to access and update data. Flow Builder does not require coding skills and can be used declaratively by admins and developers alike. References: The use of Flow Builder for creating call scripts can be referenced in Salesforce’s official documentation and learning modules, specifically under the section that covers business process automation with flows (Business Process Automation with Flows).

External IDs are useful for data integration and synchronization between Salesforce and other external platforms. By mapping records based on the External ID, you can easily import, update, or upsert data from external sources without relying on the Salesforce record ID. External IDs are also indexed, which means they can speed up the SOQL queries that use them as filters or join conditions. References: External ID in Salesforce: Everything You Need To Know, Relating Records by Using an External ID, Certification - Platform Developer I - Trailhead

The developer should use an external ID field to ensure the data being integrated is matched to the right records in Salesforce. An external ID field is a custom field that has the External ID attribute, meaning that it contains unique record identifiers from a system outside of Salesforce. When you integrate with an external system, you can use an external ID field to match records based on the external system’s ID, rather than the Salesforce ID. This way, you can avoid creating duplicate records or updating the wrong records. An external ID field can also be used as a relationship field to relate records to other objects. A lookup field is a relationship field that allows users to select a record from another object. A formula field is a read-only field that derives its value from a formula expression. An external object is a custom object that maps to data stored outside Salesforce, such as in an external database. These options are not relevant to matching records based on an external system’s ID. References:

• Salesforce Help: External ID Fields, page 1
• Trailhead: Platform Developer I Certification Study Guide: Data Modeling, unit 2

The developer should implement a callout from a queueable class called from a trigger to accomplish this. A callout is a request that is sent from Salesforce to an external service, such as a REST endpoint in the ERP system1. A queueable class is an Apex class that implements the Queueable interface and can be executed asynchronously by adding it to the Apex job queue2. A trigger is an Apex script that executes before or after specific data manipulation language (DML) events on a Salesforce object, such as insert, update, or delete3.

The reason why this option is the best is because:

• A callout from a future method called from a trigger (option A) is not recommended, because future methods have some limitations, such as not being able to pass sObjects as parameters, not being able to chain future calls, and not being able to monitor the status of the execution4.
• A callout from a schedulable class called from a scheduled job (option B) is not suitable, because scheduled jobs run at a specified time or interval, and not in response to a data change event, such as setting the order status to "Placed"5.
• A flow with a callout from an invocable method (option C) is not feasible, because flows cannot be triggered by data changes, but only by user actions, such as clicking a button, or by process automation tools, such as Process Builder or Workflow.

References:

• 1: Callouts | Apex Developer Guide | Salesforce Developers
• 2: Queueable Apex | Apex Developer Guide | Salesforce Developers
• 3: Triggers | Apex Developer Guide | Salesforce Developers
• 4: Using the Future Annotation | Apex Developer Guide | Salesforce Developers
• 5: Schedulable Interface | Apex Developer Guide | Salesforce Developers
• : [Flow Trigger Workflow Actions | Salesforce Help]

The Lead Source field is a standard picklist field that indicates the source of the lead, such as web, phone inquiry, partner referral, and others1. The Lead Source field is related to the contact, account, and opportunity Source fields, and the value can be inherited from one field to the next as a lead progresses through the funnel2. To ensure that a user populates the Lead Source field prior to converting a lead, the best option is to use a validation rule. A validation rule is a formula that evaluates the data in one or more fields and returns a value of true or false3. Validation rules verify that the data a user enters in a record meets the standards you specify before the user can save the record3. By creating a validation rule on the Lead object that checks if the Lead Source field is blank, you can prevent the user from converting the lead without filling in the Lead Source field. You can also display a custom error message to inform the user of the requirement3. For example, the validation rule formula could be:

ISBLANK(LeadSource)

And the error message could be:

Please enter a value for Lead Source before converting the lead.

Using a formula field, Lead Conversion field mapping, or an after trigger on Lead are not effective ways to ensure that the user populates the Lead Source field prior to converting a lead. A formula field is a read-only field that derives its value from a formula expression you define. It cannot be edited by the user and cannot enforce data entry. Lead Conversion field mapping is a way to specify how fields in the lead record are transferred to the fields in the contact, account, and opportunity records during lead conversion. It cannot prevent the user from converting the lead without entering the Lead Source field. An after trigger on Lead is a piece of Apex code that executes after a lead record is inserted, updated, deleted, or undeleted. It cannot validate the data entered by the user before the lead conversion occurs. References: 1 Lead | Object Reference for the Salesforce Platform | Salesforce Developers1, 2 Let’s Talk About Salesforce Lead Source | Salesforce Ben2, 3 Validation Rules | Salesforce Help3, Formula Field | Salesforce Field Reference Guide | Salesforce Developers, Map Lead Fields for Lead Conversion | Salesforce Help, Triggers | Apex Developer Guide | Salesforce Developers

• Rollup summary fields can cause the parent record to go through Save. This is true because when a child record is created, updated, or deleted, the parent record is also updated to reflect the changes in the rollup summary field. This update can cause the trigger on the parent object to fire again, which can affect the performance and logic of the trigger1.
• The trigger may fire multiple times during a transaction. This is true because triggers can be invoked by other triggers, workflow rules, or processes in the same transaction. This can result in multiple trigger executions for the same record, which can also affect the performance and logic of the trigger2.
• Duplicate rules are executed once all DML operations commit to the database. This is false because duplicate rules are executed before the DML operations are committed to the database. Duplicate rules are part of the validation rules that are run before the triggers3.
• The validation rules will cause the trigger to fire again. This is false because validation rules are run before the triggers, and they do not cause the triggers to fire again. Validation rules only prevent the record from being saved if the validation fails4.

References:

• 1: Roll-Up Summary Fields
• 2: Triggers and Order of Execution
• 3: Duplicate Management
• 4: Validation Rules

The Apex method that is wired to the searchResults property should be defined as a static method with the @AuraEnabled(cacheable=true) annotation. This annotation enables the method to be called from the Lightning component and also allows the method to be cached by the Lightning Data Service. Caching the method improves the performance and user experience of the component, as it reduces the number of server requests and displays the data faster. The cacheable attribute should be set to true only for methods that return data that does not change frequently or does not depend on the user context. The term parameter should be used to filter the Opportunities based on the user input. References: Call Apex Methods, Improve Performance with Storable Actions, Prepare for Your Salesforce Platform Developer I Credential

According to the order of execution rules, the first step that happens when a record is saved is the JavaScript validation on the browser, if the record contains any dependent picklist fields. This validation limits each dependent picklist field to its available values. No other validation occurs on the client side. The other steps happen later on the server side, after the record is submitted to the server. References:

• Triggers and Order of Execution, Apex Developer Guide, Section: Triggers and Order of Execution
• Learn Salesforce Order of Execution, Salesforce Ben, Section: Order of Execution from Developer Docs API v54

This is because when a DML exception is thrown, it means that the operation failed due to some error, such as a validation rule, a trigger, or a governor limit. If the exception is not handled, it will cause the entire transaction to roll back and display an unhandled exception message to the user. To handle exceptions gracefully, the developer should use a try/catch block to catch the exception and handle it in a way that does not disrupt the user experience, such as logging the error, displaying a custom message, or retrying the operation. References: The use of try/catch blocks for handling exceptions is covered under Apex basics on Trailhead1. You can also find more information on DML exceptions and how to handle them in the Apex Developer Guide2.

The code should be altered to collect the insert method return value as a SaveResult variable, which can provide information about the success or failure of the insert operation, as well as any errors that occurred. The SaveResult variable can be used to print the error messages or debug logs, or to perform conditional logic based on the outcome of the insert operation. For example, the code can be modified as follows:

Account a = new Account(Name = ‘A’); SaveResult sr = Database.insert(a, false); if (sr.isSuccess()) { System.debug(‘Account inserted successfully’); } else { System.debug('Account insertion failed: ’ + sr.getErrors()[0].getMessage()); }

The second parameter of the Database.insert method is the allOrNone option, which specifies whether to roll back the entire transaction or not if any record fails to insert. Setting it to true or false does not affect the debugging of the issue, but only the behavior of the transaction. Adding a System.debug() statement before the insert method does not help to debug the issue, because it does not provide any information about the insert operation itself. Adding a try/catch around the insert method can help to handle any exceptions that may occur during the insert operation, but it does not provide the same level of detail as the SaveResult variable.

References: SaveResult Class, Database.insert method, Prepare for Your Salesforce Platform Developer I Credential

Custom exceptions in Apex are user-defined exception classes that can have their own member variables, methods, constructors, and interfaces. They must extend the system Exception class and have a class name that ends with “Exception”. They cannot extend other classes besides the Exception class. Custom exceptions enable more detailed error messages and custom error handling in catch blocks. They can also be rethrown as inner exceptions to preserve the stack trace information.

References:

• Create Custom Exceptions | Apex Developer Guide
• Exception Class and Built-In Exceptions | Apex Reference Guide
• Handling Exceptions in Apex: Creating and Using Custom Exceptions
• Custom Or User-Defined Exception In Apex | Salesforce Developer Tutorials
• Using custom exception types | Mastering Apex Programming

The correct definition of a Lightning Web Component property that uses the getAccounts method is option C. In Salesforce, the @wire decorator is used to read data from one of the wire adapters built into Lightning Web Components or create a JavaScript property in a Lightning web component. The property is then provisioned with data, error, or both. A provisioned property has a specific shape—data and error properties—designed for working with wire services.

In this case, @wire(getAccounts, { searchTern: '$searchTern' }) accountList; is the correct syntax where:

• getAccounts is the Apex method.
• { searchTern: '$searchTern' } are parameters passed to the Apex method.
• accountList is the JavaScript property that gets assigned the data returned by getAccounts.

References: Lightning Web Components Developer Guide

In Salesforce, a controller and extension for a custom object on a Visualforce page can be specified using the  tag. The standardController attribute is used to associate the page with a standard or custom object, and the extensions attribute is used to specify an Apex class that extends the functionality of the standard or custom controller. The code snippet in option C, , correctly demonstrates this by associating the Visualforce page with a custom object named “Notice” and specifying an extension named “myControllerExtension”. References: You can find more information about controllers and extensions in the Visualforce Developer Guide and the [Apex Developer Guide] on Salesforce’s official website.

To declare variables that cannot change once a value is assigned, the developer can use the final keyword, which means that the variable can only be assigned a value once, either when declaring the variable or inside a constructor1. For example:

Java

// Declare a final variable and assign its value when declaring

final Integer creditAmount = 1000;

// Declare a final variable and assign its value in the constructor

final Integer debtAmount;

public MyClass() {

debtAmount = 500;

}

AI-generated code. Review and use carefully. More info on FAQ.

The developer cannot use the static keyword to achieve the same effect, as static variables are not final by default. Static variables are used to store class-level information that is shared across all instances of the class, and they can be changed by any method in the class or by external classes2. For example:

Java

// Declare a static variable and assign its value in the class constructor

static Integer creditAmount;

public MyClass() {

creditAmount = 1000;

}

// Declare a static variable and assign its value in a static initializer

static Integer debtAmount;

static {

debtAmount = 500;

}

// Change the value of the static variables in a method

public void updateAmounts(Integer newCredit, Integer newDebt) {

creditAmount = newCredit;

debtAmount = newDebt;

}

AI-generated code. Review and use carefully. More info on FAQ.

References:

• Using the final Keyword | Apex Developer Guide | Salesforce Developers
• Using the static Keyword | Apex Developer Guide | Salesforce Developers

A master-detail relationship is a parent-child relationship in which the master (parent) record controls certain behaviors of the detail (child) record, such as security, ownership, and deletion. A re-parentable master-detail relationship allows the detail record to be moved to a different master record, as long as the user has the appropriate permissions. This relationship implementation supports the requirements of calculating the total amount on an Order, calculating the line amount for each Line Item, and moving Line Items to a different Order. A lookup relationship is a looser association between two objects, in which the parent record does not control the behaviors of the child record. A re-parentable lookup relationship also allows the child record to be moved to a different parent record, but it does not support the automatic roll-up summary fields or cascade deletion that are needed for the requirements. Therefore, option A is the correct relationship implementation for the scenario. References: Relationships Among Objects | Salesforce Help, Cert Prep: Platform Developer I: Data Modeling

To create a class that provides the capabilities defined by multiple interfaces, the class must use the implements keyword followed by a comma-separated list of the interface names. The class must also provide the implementation for all the methods declared in the interfaces. The extends keyword is used for inheritance, not for implementing interfaces. Therefore, option C is the correct implementation of the DrawList class that implements both the Sortable and Drawable interfaces. References: Interfaces | Apex Developer Guide, Cert Prep: Platform Developer I: Developer Fundamentals

• Add a new Create Records element. This is true because the developer needs to create a new Contact record and store its ID on the Opportunity record. A Create Records element allows the developer to create one or more records of a specific object type and assign values to the fields of those records1.
• Add a new Get Records element. This is false because the developer does not need to query any existing records from the database. A Get Records element allows the developer to find and store one or more records of a specific object type that meet certain criteria2.
• Add a new Update Records element. This is false because the developer already has an Update Records element in the flow that updates the Opportunity record. A Update Records element allows the developer to update one or more records of a specific object type that meet certain criteria3.
• Add a new Roll back Records element. This is false because the developer does not need to undo any changes made by the flow. A Roll back Records element allows the developer to roll back the changes made by the flow to the database if an error occurs.

References:

• 1: Create Records
• 2: Get Records
• 3: Update Records
• : Roll Back Records

 The Developer Console is a tool that allows developers to access and edit code, execute SOQL and SOSL queries, debug and test code, view logs and performance data, and more. The Developer Console can help troubleshoot performance issues by providing information such as execution time, heap size, CPU time, and limits usage for each line of code. The Developer Console also has features such as the Performance Tree, the Execution Overview, and the Timeline View that can help identify and optimize the performance bottlenecks. The Developer Console is different from the other tools listed, as they are not designed for performance troubleshooting. AppExchange is a marketplace for Salesforce apps and components. Salesforce CLI is a command-line interface for managing Salesforce projects and orgs. Visual Studio Code IDE is an integrated development environment that supports Salesforce extensions and tools. References:

• Developer Console from the Salesforce Developer Center
• Troubleshoot Performance Using the Developer Console from the Salesforce Trailhead
• Developer Console Basics from the Salesforce Help

 To satisfy the requirements, a developer should implement a flow and an invocable method. A flow is a declarative tool that allows you to automate business processes by collecting data and performing actions in your org or an external system1. An invocable method is a method that can be called by a flow, a process, or another Apex method2. By using a flow and an invocable method, the developer can achieve the following steps:

• Create a flow that guides the sales rep through the scripted steps with each new customer they create1.
• In the flow, use an Apex action to invoke an invocable method that calls the REST endpoint of UC’s ERP system and passes the customer information as a parameter23.
• In the invocable method, use the HttpRequest and HttpResponse classes to send a GET request to the REST endpoint and receive a response that contains the customer data4.
• In the invocable method, parse the response body and return the customer data as an output parameter to the flow24.
• In the flow, use a screen element to display the customer data to the sales rep if the customer exists in the ERP system1.

Using a future method or a trigger are not effective ways to satisfy the requirements. A future method is a method that runs in the background, asynchronously, after the current transaction finishes5. A trigger is a piece of Apex code that executes before or after a record is inserted, updated, deleted, or undeleted. Neither of these options can interact with the flow or the sales rep, and they are not suitable for calling a REST endpoint that requires a synchronous response5 . References: 1 Automate Your Business Processes with Flows | Salesforce Trailhead1, 2 InvocableMethod Annotation | Apex Developer Guide | Salesforce Developers2, 3 Call Apex Code from a Flow | Salesforce Trailhead3, 4 Apex REST Callouts | Apex Developer Guide | Salesforce Developers4, 5 Asynchronous Apex | Apex Developer Guide | Salesforce Developers5, Triggers | Apex Developer Guide | Salesforce Developers

The deployment will pass because the Apex code has the required >75% code coverage. In Salesforce, one of the prerequisites for deployment is that the Apex code must have at least 75% test coverage. This means that at least 75% of your Apex script must be executed by your test classes. Since in this case, the overall code coverage is 81%, it exceeds the minimum requirement, allowing for successful deployment. However, it is not a best practice to rely on indirect code coverage from other classes or triggers. The developer should write a separate test class for the trigger that covers all the possible scenarios and outcomes. Additionally, the test method should include assertions to verify the expected behavior and results of the code. References:

• Apex Developer Guide)
• Testing Apex - Trailhead)
• Free Salesforce Platform Developer 1 Practice Exam (With Answers))

 Salesforce CLI is a command-line interface that allows developers to create, test, and deploy code and configurations to any Salesforce environment1. Salesforce CLI is the recommended tool for deploying custom Apex code and Lightning Components, as it provides more flexibility, control, and automation than other deployment methods2. Salesforce CLI can also integrate with source control systems, such as Git, to enable version control and collaboration among developers3. Using a change set is another option to deploy code and configurations from one Salesforce org to another, but it has some limitations, such as requiring a deployment connection, not supporting all metadata types, and not allowing selective deployment of components4. Using the Force.com IDE or the Ant Migration Tool are also possible ways to deploy code and configurations, but they are less user-friendly and require more manual steps than Salesforce CLI5 . References:

• Salesforce CLI | Salesforce Developer Tools
• Deploy Your Code with Salesforce CLI | Salesforce Trailhead
• Manage Projects with Salesforce DX | Salesforce Trailhead
• Change Sets | Salesforce Trailhead
• Force.com IDE | Salesforce Developer Tools
• [Ant Migration Tool | Salesforce Developer Tools]

 the current user has the permission to delete Account records, and false otherwise. This method is part of the Schema.DescribeSObjectResult class, which provides information about the metadata and permissions of an sObject type. The other options are incorrect because they either use invalid syntax or refer to the wrong object or variable. The accountRec variable is an instance of an Account record, not an sObject type, and it does not have an isDeletable() method. The Account sObject type does not have an isDeletable() method either, it is a property of the Schema.DescribeSObjectResult class. The AccountRec.ObjectType property returns the sObject type of the accountRec variable, which is Account, but it does not have an isDeletable() method either. References:

• Schema.DescribeSObjectResult Class
• Schema.sObjectType Class
• Apex Developer Guide: Checking User Permissions

 To create a form that will create a record for a custom object, the developer can use a Dynamic Form, which is a Lightning App Builder component that allows you to customize the fields and sections of a record page layout1. A Dynamic Form can also use visibility rules to display different fields based on the user’s profile, role, or other criteria2. To add the functionality to the Account record page, the developer can use a Dynamic Action, which is a way to configure actions on a record page without code3. A Dynamic Action can also use visibility rules to show or hide actions based on the user’s profile, role, or other criteria4. To restrict the functionality to a small group of users, the developer can create a Custom Permission, which is a way to grant access to custom processes or apps5. A Custom Permission can be assigned to a permission set or a profile, and then assigned to the users who need it. References:

• Dynamic Forms | Salesforce Trailhead
• Visibility Rules for Dynamic Forms | Salesforce Help
• Dynamic Actions | Salesforce Trailhead
• Visibility Rules for Dynamic Actions | Salesforce Help
• Custom Permissions | Salesforce Trailhead
• [Assign Custom Permissions | Salesforce Help]

In Apex, if a SOQL query returns more than one row and the result is assigned to a single sObject variable, an exception will be thrown. This is because a single sObject variable can only hold one record. In this case, since myAccount is declared as a single Account object, it cannot hold more than one record. If the SOQL query returns more than one Account, an unhandled exception occurs, and the code terminates. References: The behavior can be understood from the Apex Developer Guide under the section of SOQL Queries 

 In Salesforce, the sharing rules are always enforced for the running user if not explicitly stated otherwise. The running user’s permissions and field-level security are always enforced, regardless of whether the class is defined with or without sharing. So in this case, since there is no explicit sharing declaration in the provided code snippet, it defaults to enforcing the sharing rules for the running user. References:

• Apex Developer Guide: Using the with sharing, without sharing, and inherited sharing Keywords
• Trailhead: Apex Sharing and Security

The Limits class contains methods that return limit information for specific resources, such as the number of DML statements, the amount of CPU time, or the number of SOQL queries. There are two versions of every method: the first returns the amount of the resource that has been used while the second version contains the word limit and returns the total amount of the resource that is available. See Execution Governors and Limits1. References: 1: Limits Class | Apex Reference Guide | Salesforce Developers(https://developer.salesforce.com/docs/atlas.en-us.apexref.meta/apexref/apex_methods_system_limits.htm)

Unit tests are methods that verify whether a particular piece of code is working properly. Unit tests can be run synchronously or asynchronously, and can be used to test Apex classes, triggers, and Visualforce controllers. Unit tests can also use system methods to set or override certain system properties, such as the current user, the current time, or the created date of a record. These methods are useful for testing different scenarios or behaviors that depend on these properties. For example, a unit test can use the System.runAs() method to execute a block of code as a different user, or the System.Test.setCreatedDate() method to set the created date of an sObject to a past or future date. See Testing Apex1 for more details. References: 1: Testing Apex | Apex Developer Guide | Salesforce Developers(https://stackoverflow.com/questions/767567/what-to-test-in-unit-testing-a-method-or-a-scenario)

 The two scenarios that require an Apex method to be called imperatively from a Lightning web component are:

• Calling a method that makes a web service callout: A web service callout is a request that is sent from Salesforce to an external service, such as a REST or SOAP API1. Web service callouts are subject to limits and restrictions, such as the maximum number of callouts per transaction, the maximum response size, and the requirement to use asynchronous execution for long-running callouts1. Therefore, to control when the callout occurs and handle the response or errors, it is recommended to call the Apex method that makes the callout imperatively from the Lightning web component2.
• Calling a method that is not annotated with cacheable=true: The cacheable=true annotation on an Apex method indicates that the method can be cached and reused by the Lightning Data Service, which is a layer of the Lightning web component framework that manages data and metadata3. This annotation improves the performance and user experience of the Lightning web component, as it reduces the number of server round trips and network latency3. However, not all Apex methods can or should be annotated with cacheable=true, such as methods that perform DML operations, return different results for different users, or depend on the current state of the database3. In such cases, the Apex method should be called imperatively from the Lightning web component to ensure the data is fresh and consistent2.

References:

• 1: Callouts | Apex Developer Guide | Salesforce Developers
• 2: Call Apex Methods Imperatively | Work with Salesforce Data | Lightning Web Components Developer Guide | Salesforce Developers
• 3: Call Apex Methods | Work with Salesforce Data | Lightning Web Components Developer Guide | Salesforce Developers

The @HttpInvocable annotation is used to expose an Apex class as a RESTful web service. This allows the class to be invoked by a REST client, enabling external systems to interact with Salesforce via the API. The methods within the class that are exposed as REST web services must be static and global or public. References: Apex Developer Guide

 The method must be decorated with @AuraEnabled to make it accessible from a Lightning web component. The @AuraEnabled annotation enables client- and server-side access to an Apex controller method. Without this annotation, the Lightning web component can’t call the Apex method. The cacheable=true attribute is optional and indicates whether the method can be cached by the client. The method can return any data type that can be serialized into JSON, such as a JSON object, a JSON array, a primitive type, or a custom type. The method does not need to return a string of a serialized JSON array, as the framework handles the serialization and deserialization automatically. References:

• Lightning Web Components Developer Guide: Call Apex Methods, pages 1-2
• Apex Developer Guide: Annotation AuraEnabled, page 1
• Trailhead: Platform Developer I Certification Study Guide: Lightning Web Components, unit 5

This SOQL query will get the record for the Viridian City gym and its trainers by using a subquery to fetch the related records from the Trainer_c object. The subquery uses the relationship name Trainer_c, which is the plural form of the custom object name with a suffix of __c. The main query uses the Name field of the Gym_c object to filter by the gym name. The query also uses the correct syntax for SOQL, which requires the use of the equal sign (=) for comparison operators, and single quotes (') for string literals. References: SOQL SELECT Syntax, [SOQL Relationships Between Objects], [SOQL Subquery]

https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_relationships.htm : https://developer.salesforce.com/docs/atlas.en-us.soql_sosl.meta/soql_sosl/sforce_api_calls_soql_select_subquery.htm

In Salesforce, the sharing context is determined by the definition of the class where a method is defined, not where it is invoked or instantiated. Since there’s no “with sharing” or “without sharing” keyword in the class definition in the provided example, it operates in system context. In system context, Apex code has access to all objects and fields— object permissions, field-level security, sharing rules aren’t applied for the current user. References: Apex Developer Guide

The Salesforce Lightning Design System (SLDS) is a CSS framework that provides a look and feel that is consistent with Lightning Experience1. By incorporating the SLDS CSS stylesheet into the JavaScript applications, the developer can apply the same styles and components that are used in Lightning Experience, without having to rewrite the entire application or change the underlying logic. This is the quickest and most effective way to update the custom applications to match the Lightning Experience UI.

The other options are not as quick or effective as option A. Option B would require rewriting all the Visualforce pages as Lightning components, which would be time-consuming and complex, especially if the applications use a third-party JavaScript framework that is not compatible with Lightning Web Components. Option C is not valid, as there is no such attribute as enableLightning in the Visualforce page definition. Option D would enable the Visualforce pages to be accessed from Lightning Experience, Lightning Communities, and the mobile app, but it would not change the appearance or behavior of the pages to match the Lightning Experience UI. References:

• Style with Lightning Design System - Salesforce Developers
• Using the Salesforce Lightning Design System in Apps - Salesforce Developers

The best way to implement this feature is to use an Account custom trigger. A trigger is a piece of Apex code that executes before or after a record is inserted, updated, deleted, or undeleted1. In this case, the trigger should execute before an Account record is updated and check if the Postal Code field has changed. If so, the trigger should query the postalCodeToTimezone_c custom object to find the matching Timezone value and assign it to the custom Account text field named Timezone. This way, the Timezone field will be updated automatically based on the Postal Code field.

An Account approval process is not suitable for this feature, as it is used to automate the process of approving records based on predefined criteria and actions2. An Account assignment rule is also not suitable, as it is used to assign ownership of Account records to users or queues based on criteria3. An Account workflow rule is not suitable either, as it is used to automate tasks, email alerts, field updates, and outbound messages based on criteria and evaluation rules4. None of these options can update the Timezone field based on the values in a custom object.

References:

• Apex Developer Guide - Triggers
• Salesforce Help - Approval Processes
• Salesforce Help - Assignment Rules
• Salesforce Help - Workflow Rules

The exception type that cannot be caught is the LimitException. This exception is thrown when some governor limit is exceeded (like SOQL query limits, number of records that can be processed in a transaction, etc.). Salesforce doesn’t allow developers to catch LimitException in order to maintain the multi-tenant environment and ensure that no single tenant consumes excessive resources. References: Exception Class and Built-In Exceptions, Free Salesforce Platform Developer 1 Practice Exam (With Answers), SALESFORCE CERTIFIED PLATFORM DEVELOPER I

The correct answer is option C. The Lightning code segment that should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page is:

This code segment uses the ltng:require tag, which is a base Lightning component that allows you to load external JavaScript libraries and stylesheets in your Lightning components. The scripts attribute specifies the name and path of the JavaScript file that is uploaded as a static resource. The afterScriptsLoaded attribute specifies the name of the client-side controller action that is called after the scripts are loaded. This way, you can ensure that the c:accountList component has access to the JavaScript library that it depends on.

The other options are not valid code segments for declaring dependencies on a Lightning component. Option A uses the ltng:dependency tag, which is used to declare dependencies between Lightning components, not between a Lightning component and a JavaScript library. Option B uses the ltng:include tag, which is not a valid tag in the Lightning component framework. Option D uses the ltng:import tag, which is also not a valid tag in the Lightning component framework.

References: ltng:require - documentation, Using External JavaScript Libraries, Prepare for Your Salesforce Platform Developer I Credential

The number of times a trigger can fire depends on the number of records that are processed and the number of DML operations that are performed. Some operations can cause the trigger to fire multiple times, either by updating the same records or by updating related records. These operations include:

• Process Flows: A process flow is a declarative tool that can automate complex business processes by executing actions based on criteria. A process flow can update the same record that triggered it, or a related record, which can cause the trigger to fire again1.
• Workflow Rules: A workflow rule is a declarative tool that can automate tasks and field updates based on criteria. A workflow rule can update the same record that triggered it, or a related record, which can cause the trigger to fire again2.
• Roll-Up Summary fields: A roll-up summary field is a custom field that aggregates child record information into a parent record. A roll-up summary field can update the parent record when a child record is inserted, updated, deleted, or undeleted, which can cause the trigger to fire again3.

The other options do not affect the number of times a trigger can fire. Criteria-based sharing calculations and email messages do not update records or cause DML operations. References:

• Process Automation | Salesforce Help
• Workflow Rules | Salesforce Help
• Roll-Up Summary Fields | Salesforce Help

The code snippet provided in the image is a Salesforce Apex code that is used to create new accounts in a Salesforce org. Initially, there are five existing accounts. In the provided Apex code, one account named ‘MyAccount’ is created and inserted into the org, making the total six accounts. Then, a loop is executed to create and add ten more new accounts (named ‘New Account 1’ to ‘New Account 10’) into the org using a do-while loop that runs while x is less than 10 (starting from x=1). So, after executing this code, there will be an additional eleven accounts added to the initial five accounts making it a total of fifteen (5 initial + 11 new = 16) accounts in the org. References: The explanation can be corroborated with knowledge of Apex programming on Salesforce’s official learning platform Trailhead and related documentation.

• [Apex Basics for Admins]
• [Apex Developer Guide]
• [Developer Console]

 The correct answer is C and D because they are the characteristics of Lightning Web Component custom events as described in the Salesforce documentation1. A custom event is an event that a component fires to communicate data to other components. By default, a custom event only propagates to its immediate container, which is the component that created it or the component that hosts the component that created it. To propagate the event beyond the immediate container, the component that fires the event must set the composed property of the event to true. A custom event can pass data to other components in the payload using a property called detail, which can be any JavaScript object. The other options are incorrect because they are not true for Lightning Web Component custom events. Option A is incorrect because a wire decorated property is a property that is automatically updated with data from a Salesforce org or an Apex method. It is not related to custom events. Option B is incorrect because a custom event does not propagate to its immediate child component by default, unless the child component is the one that fires the event or the event is composed. References:

• Communicate with Events
• Trailhead: Communicate Between Components
• Trailhead: Lightning Web Components Basics

 SOQL injection is a vulnerability that occurs when user-supplied input is used to construct a dynamic SOQL query without proper validation or escaping. This can allow an attacker to modify the query and execute unintended commands or access unauthorized data. To prevent SOQL injection, it is recommended to use static queries with bind variables or use the escapeSingleQuotes method to sanitize the input. Based on the image descriptions from my tool outputs, the following options are safe from SOQL injection:

• Option A: This option uses a static query with a bind variable, which automatically escapes any malicious input and prevents it from changing the query structure. The bind variable name is obtained from an apex:inputText tag on a Visualforce page and is used as a filter for the Account Name field.
• Option C: This option also uses a static query with a bind variable, which is the same as option A. The only difference is that the bind variable name is obtained from a different apex:inputText tag on the same Visualforce page and is used as a filter for the Contact Name field.

The other options are not safe from SOQL injection because they use dynamic queries with string concatenation, which can allow an attacker to inject SOQL commands into the query string and bypass the intended logic or access unauthorized data.

References: The use of static queries with bind variables and the escapeSingleQuotes method to prevent SOQL injection can be referenced in the Salesforce Platform Developer I learning documents, specifically in modules that cover Apex security and SOQL, such as:

• SOQL Injection
• Secure Coding SQL Injection
• Apex Basics & Database

The developer should use the lightning-input-field component to support the security requirements. This component respects the field-level security and sharing settings of the Salesforce org, and displays the appropriate data to different types of users. The other components do not have this feature, and may expose sensitive data to unauthorized users. References: Lightning Web Components Developer Guide), Secure Coding Guide)

 Developer Edition orgs are free, fully-featured copies of Salesforce that are designed for developers to create and test applications. They have the same configuration as the production org, but with limited data and file storage. Developer Edition orgs are ideal for individual developers or small teams who want to work in their own orgs that are isolated from each other. Full Sandbox orgs are also copies of the production org, but they require a paid license and have a refresh interval of 29 days. Partner Developer Edition orgs are similar to Developer Edition orgs, but they have higher limits on data and file storage, as well as the number of custom objects and tabs. They are available only to Salesforce partners who are enrolled in the Partner Program. Developer Sandbox orgs are copies of the production org metadata, but they have very limited data and file storage, and a refresh interval of one day. They are useful for coding and testing in a disposable environment, but not for developing complex applications that require more resources. References:

• Certification - Platform Developer I - Trailhead
• SALESFORCE CERTIFIED PLATFORM DEVELOPER I
• [Developer Edition Orgs | Salesforce Trailhead]
• [Sandbox Types and Templates | Salesforce Trailhead]

The deployment passes because the Apex code has the required 75% code coverage. In Salesforce, you need at least 75% of your Apex code to be covered by unit tests, and all of those tests must complete successfully. When deploying to a production environment, every unit test in your organization namespace is executed. Since the developer’s test method covers 81% of the Apex code, it meets the minimum requirement for deployment.

Option A is incorrect because the Apex trigger has code coverage, as it is invoked by the test method that calls MyClass.myStaticMethod. The trigger and the method have the same logic, so the test method effectively tests both.

Option B is incorrect because assertions are not mandatory for deployment, although they are highly recommended for verifying the expected outcomes of the test cases. Assertions are statements that compare the actual results of the test with the expected results. If an assertion fails, the test fails.

Option D is incorrect because including both classes and the trigger in the deployment is not sufficient to ensure code coverage. The developer still needs to write and run unit tests that cover the Apex code.

References: Apex Testing), Deploying Apex to a Salesforce Production Organization)

Cross site scripting (XSS) is a vulnerability that occurs when an attacker can insert unauthorized HTML or JavaScript code into a web page viewed by other users. This can lead to hijacking the user’s session, stealing confidential information, or defacing the page. To prevent XSS, the developer should always validate and encode any user-supplied data before displaying it on the page. The ApexPages.currentPage() .getParameters() .get(‘url_param’) method returns the value of the URL parameter as a string, but does not perform any validation or encoding. Therefore, it is vulnerable to XSS if the parameter contains malicious code. The ApexPages.currentPage() .getParameters() .get(‘url_param’) .escapeHtml4() method escapes the HTML characters in the parameter value, such as <, >, &, and ", but does not prevent JavaScript code from being executed. Therefore, it is also vulnerable to XSS if the parameter contains a script tag or an event handler attribute. The String.escapeSingleQuotes(ApexPages.currentPage() .getParameters(). get(‘url_param’)) method escapes the single quotes in the parameter value, but does not affect any other characters. Therefore, it is also vulnerable to XSS if the parameter contains any HTML or JavaScript code. The String.ValueOf(ApexPages.currentPage() .getParameters() .get(‘url_param’)) method converts the parameter value to a string and encodes any HTML characters as HTML entities, such as <, >, &, and ". This prevents any HTML or JavaScript code from being rendered or executed on the page. Therefore, it is the best option to prevent XSS. References: You can learn more about XSS and how to prevent it in Apex from the following sources:

• Cross Site Scripting (XSS) | Apex Developer Guide
• Secure Coding Cross Site Scripting | Secure Coding Guide
• Cross-Site Scripting in Apex | SecureFlag Security Knowledge Base

A SOQL query can return a list of sObjects, a list of primitive data types, or a list of lists of primitive data types. A list is a collection of elements of the same data type. An sObject is a generic abstract type that corresponds to any Salesforce object, such as Account, Contact, or custom objects. A primitive data type is a basic data type, such as String, Boolean, Integer, Double, Date, or DateTime. A long is not a valid data type in Apex or SOQL, and an integer is a subtype of double, so they are not distinct return types for a SOQL query. References: Salesforce Object Query Language (SOQL), SOQL SELECT Syntax

 To mark each Account in a List as either Active or Inactive based on the LastModified field value being more than 90 days, the developer should use a for loop, with an if/else statement inside. This technique allows the developer to iterate over the list of accounts, check the condition for each account, and update the field value accordingly. A switch statement is not suitable for this scenario, because it can only compare one expression with a set of constant values, not a range of values or a date calculation. An if/else statement without a for loop would not be able to process the entire list of accounts, only one account at a time.

References:

• : Loops
• : Switch Statements
• : If-Else Statements

The correct answer is to move all of the logic to a Queueable class that queries for and updates the Assets and call it from the trigger. This is because when dealing with bulk data, triggers can often hit governor limits. By utilizing a Queueable class, the developer can perform asynchronous processing which helps in handling more records and avoiding hitting governor limits. References: The Salesforce Platform Developer I Learning documents emphasize on understanding the governor limits and how to write efficient code that can handle bulk data without hitting these limits. Asynchronous processing like Batch Apex, Future methods, or Queueable Apex is often recommended for bulk data handling. You can find more information on these topics in the following links: Apex Developer Guide, Trailhead

The correct answer is option C. In Salesforce, a custom SOAP Web Service is defined using Apex with annotations that enable classes and methods to be exposed as web service endpoints. Helper methods that are not used by the Web Application should not be declared as webservice. They can be private or public but should not have the webservice keyword in their declaration. The webservice keyword is specifically for methods that are exposed to external applications via SOAP API.

References: The information can be referenced from the official Salesforce documentation on creating custom web services with Apex: Creating Custom Web Services.

 A standard list controller provides a list of records of a specific object type, such as Contact, and allows you to create Visualforce pages that can display or act on that data1. A standard list controller is suitable for this purpose, because it can easily query the contacts owned by the current user and display them in a table or list. A standard list controller also supports pagination, sorting, filtering, and mass actions2. A standard controller provides access to a single record of a specific object type, such as Account, and is not suitable for displaying a list of records1. A lightning controller is a JavaScript controller that handles user interactions and events in a Lightning web component, and is not related to Visualforce pages3. A custom controller is an Apex class that implements all the logic for a Visualforce page, and requires writing more code than using a standard list controller1. References:

• Standard Controllers and Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
• Using Standard List Controllers | Visualforce Developer Guide | Salesforce Developers
• Lightning Web Components Developer Guide | Salesforce Developers