IBM C1000-142 IBM Cloud Advocate v2 Exam Practice Test

Cloud computing means on-demand network access to shared resources. The main benefits of cloud computing is to provide faster time to market, Improved agility of applications. Selling un-used time slice of computing is the earliest implementation of cloud computing. [Exam Tips] : On-demand self-service is an essential characteristic of cloud computing.

Explanation

IBM Cloud offers three support plans - Basic, Advanced, Premium The Advanced IBM Cloud support plan would be most cost effective for Severity 1 issues. Initial response time for advanced IBM Cloud support plan : - Severity 1: Less than one hour - Severity 2: Less than two hours - Severity 3: Less than four hours - Severity 4: Less than eight hours Initial response time for Premium IBM Cloud support plan : - Severity 1: Less than 15 minutes - Severity 2: Less than one hour - Severity 3: Less than two hours - Severity 4: Less than four hours

IBM Cloud® Databases and IBM Cloud® Database-as-a-Services (DBaaS) are fully managed by IBM, unless customers specifically request to manage some aspects themselves.

IBM Cloud® Databases and DBaaS offers your organization significant financial, operational, and strategic benefits like below:

- Your organization pays a predictable periodic charge based on the resources you consume—there’s no need to purchase additional capacity to have on hand for hypothetical future needs.

- You can quickly and easily scale-up and down as per your need.

- They are highly available, secure with IBM enterprise security, compatible with open-source databases, scalable, and economical including features like default encryption of data at rest and in-transit and integrated identity and access management controls. Some also meet specific regulatory compliance standards.

IBM's catalog of database services includes:

1. IBM Cloudant, IBM Cloud®Databases for etcd

2. IBM Cloud® Databases for MongoDB

3. IBM Cloud® Databases for PostgreSQL

4. IBM Cloud® Databases for Redis Elasticsearch

IBM Cloud Internet Services provides reliability, performance, and security for Internet facing applications, websites, and services. One of the services Cloud Internet Services provides is a global load balancer. This service enables traffic to be distributed across multiple servers located in multiple regions. Using Cloudflare, Cloud Internet Services (CIS) provides Domain Name Service (DNS), Global Load Balancer (GLB), DDoS protection, Web Application Firewall (WAF), Transport Layer Security (TLS), Rate Limiting, Smart Routing, and Caching.

Infrastructure-as-a-Service, commonly referred to as simply “IaaS,” is a form of cloud computing that delivers fundamental compute, network, and storage resources to consumers on-demand, over the internet, and on a pay-as-you-go basis. IaaS enables end users to scale and shrink resources on an as-needed basis, reducing the need for high, up-front capital expenditures or unnecessary “owned” infrastructure, especially in the case of “spiky” workloads. In contrast to PaaS and SaaS (even newer computing models like containers and serverless), IaaS provides the lowest-level control of resources in the cloud.

Cost Estimator Tool have ability to download an estimate as PDF , an .XSLX (Excel) or a .CSV (comma-separated values).

Explanation

Correct Answer : Metro : The name of a city where 1 or more data centers are located. A metro might have a multizone region, such as Dallas, or might have a single zone region, such as Mexico City. If you create a cluster in a multizone region, the Kubernetes master and worker nodes can be spread across zones for high availability. In-Correct Answers: Geography : An organizational grouping that is based on geographic continents. Note : District & Urban site are not valid options for IBM Cloud - these are added for distraction.

etcd is an open source distributed key-value store used to hold and manage the critical information that distributed systems need to keep running. etcd’s performance is heavily dependent upon storage disk speed, so it’s highly recommended to use SSDs in etcd environments. Redis (for REmote DIctionary Server) is an open-source, in-memory, NoSQL key-value store that is used primarily as an application cache or quick-response database. Redis supports multiple data structures, built-in Lua scripting, multiple levels of on-disk persistence, and high availability. Redis is an in-memory data store and can function as a database, cache, or message broker. In-Correct Answers : MongoDB is an open source, non-relational database management system that uses flexible documents to process and store various forms of data. A NoSQL solution, MongoDB provides an elastic data model that enables users to store and query multivariate data types with ease. This not only simplifies database management for developers but also creates a highly scalable environment for applications and services. MongoDB uses documents or collections of documents as its basic unit of data. Formatted as JSON objects, these documents can store various types of data and be distributed across multiple systems. MongoDB offers a few capabilities that make it stand out from other database management systems, including load balancing, ad hoc database queries, and multi-language support. PostgreSQL, commonly pronounced “Post-GRES,” is an open-source database that has a strong reputation for its reliability, flexibility, and support of open technical standards. PostgreSQL provides the ability to restore databases to a specific moment in time because it maintains a write-ahead log that logs every database change. PostgreSQL features built-in support for multiple procedural languages.

Correct Answer: If you want to use encryption at rest, you must use VMware vSAN Enterprise edition with a key management server (KMS) like KMIP for VMware on IBM Cloud.

Kubernetes relies on YAML configuration files to maintain the application state.

DevOps is an approach to lean and agile software delivery that promotes closer collaboration between lines of business, development and IT operations.

Explanation

Block storage, sometimes referred to as block-level storage, is a technology that is used to store data files on Storage Area Networks (SANs) or cloud-based storage environments. Developers favor block storage for computing situations where they require fast, efficient, and reliable data transportation.

Explanation

Virtual Private Cloud used to run an isolated environment within a public cloud. A VPC is a public cloud offering that lets an enterprise establish its own private cloud-like computing environment on shared public cloud infrastructure. A VPC gives an enterprise the ability to define and control a virtual network that is logically isolated from all other public cloud tenants, creating a private, secure place on the public cloud. - VPC provides security in two ways. At the instance level protection is provided through security groups. At the subnet level, protection is provided by access control lists. Site-to-site virtual private networks (VPN) can be configured. A public gateway is used to enable egress to the internet for all virtual server instances on the attached subnet. - VPC provides flexibility when customers securely connect to on premises or remote infrastructure. VPCs can be created in various regions around the world. Customers can select a private IP address or bring their own IP address for cloud applications. Using Direct Link helps create a dedicated connection between the cloud and on premises resources. This allows an organization to extend its network and provide a consistent connection without using the public internet. - Responsiveness VPC makes it possible to create responsive cloud applications. Instance profiles with elasticity are used when creating applications for workloads, horizontal scaling, performance monitoring, and load balancing services.

IBM Cloud Architects recommend and design cloud solutions to solve client problems

Correct Answer : Bare Metal Server is a dedicated to a single customer only. Bare metal servers are suitable for big data analytics applications and GPU-intensive solutions. Bare metal servers satisfies workload examples such as ERP, CRM, AI, deep learning and virtualization. In-Correct Answers : Virtual Machine : A virtual machine is a virtual representation of physical computer, that behaves like an actual computer. Hypervisor is a small software layer that enables multiple operating systems to run alongside each other. Hypervisor separates the VMs logically, assigning each its own slice of underlying computing power, memory, and storage. There are 2 types of Hypervisor : Type 1 & Type 2. Hosted is another name given to a Type 2 hypervisor. dBase : dBase was one of the first database management systems for microcomputers.

Explanation

Corrected Answers : 48k IOPS

IBM Cloud® Internet Services Edge functions allow you to create or modify existing applications, without having to configure or maintain infrastructure, by using a serverless execution environment. Edge functions run on CIS edge servers, not in the user’s browser. That means you can trust that your code runs in a trusted environment where it cannot be bypassed by malicious clients. It also means that the user does not need to be using a modern browser that supports service workers – you can even intercept requests from API clients that aren't browsers. Edge Functions allows you to run code closer to users of your public-facing applications or websites. In turn, you can improve your application's performance and reduce latency. This means you can quickly create new applications or modify existing ones without having to configure or maintain infrastructure via our serverless execution environment. Once a new application is deployed or an existing application is modified, it takes us ~15 seconds to get the changes distributed globally to our 180+ PoPs worldwide.

Correct Answer : Infrastructure-as-a-service would be one and only option for an organization, if they just want to access to servers and storage devices but does not want to buy them. Their own employee (Usually system admin) can install and maintain the computing platform and application software.

A resource is the instance of the service

IBM® MQ provide messaging capabilities such as point-to-point and publish subscribe models to facilitate the flow of information between applications. You can use IBM® MQ to enable applications to communicate at different times and in many diverse computing environments.

In-Correct Answers :

IBM App Connect® is a powerful all-in-one tool for easily connecting apps, integrating data, building APIs, and acting on events. It can automatically copy and synchronize data between on-premises and cloud-based applications. it can connect any endpoint, map your data, and move data fast. With IBM App Connect®, you can reliably access and combine data assets across all your enterprise applications, databases, and systems and expose them as APIs.

IBM API Connect® The tools that API Connect service provides will create and manage your APIs with security-rich features and centralized governance and business-level controls by setting varying levels of security, visibility, billing plans, and rate limits. You can use IBM API Connect for IBM Cloud to quickly create APIs for microservices based on Node.js and Java runtimes IBM Event Streams for IBM Cloud® is an event-streaming platform based on the Apache Kafka® project and incorporates the open-source Strimzi technology.

IBM Event Streams for IBM Cloud® is a high-throughput message bus built with Apache Kafka. IBM Event Streams supports Apache Avro schemas, enabling your Kafka applications to use schemas to validate data structures and to encode and decode data. Event Streams provides a REST API to help connect your existing systems to your Event Streams Kafka cluster.

Microservices architecture is an approach in which a single application is composed of many loosely coupled and independently deployable smaller services.

You can use security groups to enact a set of IP filter rules that define how to handle incoming and outgoing traffic to both the public and private interfaces your instance. Use security groups when you order a virtual server. That way, your server is protected when it is first provisioned. Other Scenarios with solutions listed below : 1. Security scenario: Customers want granular control over traffic at an instance level (apart from network-level firewalls). However, at the same time, the costs of a shared hardware firewall can add up quickly if you need to protect multiple servers in different data centers. Solution: You do not incur extra charges for using security groups. You can use security groups for all virtual servers that need protection in any of our global data centers. 2. Security scenario: You want to avoid configuring firewall rules on each server separately. Instead, you want an easily manageable firewall solution that spans servers in different global data centers. Solution: Define N security groups for N different types of servers in your cloud workload. Manage all rules for a security group in one place. Manage the security group associations with the virtual servers.

We have two option to view billing information - monthly overview and specific service.