CompTIA FC0-U71 CompTIA Tech+ Certification Exam Exam Practice Test

Compiled languages (e.g., C, C++, Go) are translated into machine code before execution, making them faster and more efficient at runtime than interpreted or scripting languages.

“Compiled code is translated into machine language before execution, providing faster performance compared to interpreted code.” — CompTIA ITF+ Software Concepts

Correct answer: B

According to the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), the SFP (Small Form-Factor Pluggable) connector is directly associated with fiber-optic networking. The guide lists:

“SFP (small form-factor pluggable) connectors are commonly used in fiber-optic connections to allow hot-swappable transceivers for different types of fiber cables.”

Additionally, the same guide’s chapter on Networking Concepts and Technologies explains:

“Fiber-optic around 2 Gbps – Incredibly fast and more expensive than DSL or cable.”

Therefore, fiber Internet is the only service type that uses SFP connectors for data transmission over optical cables.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “External network connections” and “Common Internet connection types and speeds” (pp. 429–435).

Chapter 2: Peripherals and Connectors — “SFP (small form-factor pluggable) connectors” (pp. 97–98).

A byte consists of exactly 8 bits. Bits (binary digits) are the smallest unit of data, and eight of them grouped together form one byte, which is used to represent characters and numbers in digital systems.

“A byte is made up of 8 bits and is the standard unit of data used to represent information such as characters in computing.” — CompTIA ITF+ Fundamentals

Correct answer: C

Accounting refers to the logging and monitoring of user actions. In this case, tracking login events through log files is an example of accounting in the AAA (Authentication, Authorization, Accounting) model.

“Accounting provides auditing and logging of user actions, such as login times and resource access.” — CompTIA ITF+ Security Essentials

Correct answer: A

A hypervisor is the software or hardware platform that enables virtualization. It allows multiple operating systems (guest OSes) to run on a single physical machine.

“A hypervisor manages virtual machines on a single physical system. It enables the creation and management of guest OS environments.” — CompTIA ITF+

Correct answer: D

The correct answer is C. UPS. A UPS, or uninterruptible power supply, provides temporary battery power during a power outage. This gives users or systems enough time to save work and shut down safely. Cloud storage, external drives, and file servers can store data, but they do not provide temporary power during an outage.

Exact Extract/Reference: The CompTIA Tech+ Study Guide defines a UPS as “a battery backup system” and states that during a power outage or brownout, it can supply power “for a limited amount of time and provide for a graceful shutdown.” The guide also states that if power fails, UPS batteries can power the computer long enough for the administrator to safely power it down.

The correct answer is C. Company files saved on a hard disk. Data storage refers to keeping data so it can be used later. A hard disk drive provides long-term, nonvolatile storage and keeps files even when the computer is powered off. RAM is temporary volatile memory, Task Manager shows running processes and system information, and hardware IDs recorded on boards are not the best example of user data storage.

Exact Extract/Reference: The CompTIA Tech+ Study Guide explains that storage devices provide “long-term, nonvolatile, or persistent storage options,” meaning they do not lose data when powered off. It also states that HDDs are used for “permanent storage and quick access” and hold user data and files the system needs.

Web browsers store cached data to improve loading speeds and remember form inputs. If outdated credentials are appearing, clearing the cache ensures that old stored data is removed and the page loads fresh content.

“Cached data can include stored form data, which may result in outdated information being auto-filled. Clearing the browser cache resolves this.” — CompTIA ITF+ Official Curriculum

Correct answer: C

The question asks how the value 9 can be represented using only ones and zeros, which is the definition of binary. In binary, the decimal number 9 is represented as 1001.

“Binary is a base-2 numeral system that represents numeric values using only two symbols: 0 and 1. Computers use binary to process and store all data.” — CompTIA ITF+ Study Guide

Correct answer: C

USB-C is commonly used for both charging and data transfer between modern computers and smartphones. It supports high-speed data transmission and is a standard port on most new smartphones.

“USB-C cables support power delivery and high-speed data transfer, and are commonly used to connect smartphones to computers.” — CompTIA ITF+ Guide

VGA is for video output.

Thunderbolt is high-speed, but typically used with Apple or specialized hardware.

NFC is a wireless protocol, not a cable.

Correct answer: A

After identifying the issue, implementing a solution, and verifying functionality (test page), the next step in the troubleshooting process is to document the solution for future reference.

“The final step in the troubleshooting methodology is to document findings, actions, and outcomes to ensure organizational learning and continuity.” — CompTIA ITF+ Study Guide

Correct answer: D

A password reuse policy prevents users from using the same password across multiple platforms or reusing previously used passwords. This is a best practice to reduce the risk of credential stuffing attacks.

“Password reuse policies help ensure users do not reuse old or existing passwords across multiple platforms, reducing exposure from compromised accounts.” — CompTIA ITF+ Security Objectives

Correct answer: A

The CompTIA Tech+ Study Guide clearly defines:

“To talk to the hardware, operating systems use specialized programs called device drivers, or drivers for short. A driver tells the OS how to talk to the specific piece of hardware and how to use its features. If there is no driver for that OS, then the hardware will not be compatible with it.”

Hence, drivers are the software components that control and enable communication between the OS and hardware devices.

Verified Reference:

Chapter 4: Operating Systems — “Coordinating Users and Hardware” (pp. 208–209).

The most important consideration when opening a file on an Operating System Graphical User Interface (OS GUI) is the file extension. A file extension identifies the type of file and determines which software application can open it. In the official CompTIA ITF+ Student Guide, it is stated that:

“The last part of the file name represents an extension, which describes what type of file it is and is used by Windows to associate the file with an application.”

“Files are usually opened by double-clicking them. You may want to open a file in a software product other than the default, however. When you right-click a file, the shortcut menu displays a list of suitable choices, or you can choose Open With and browse for a different application. You can also use the Default Programs applet to configure file associations.”

“Do not change a file ' s extension if it is shown. If you delete or change the extension, the file will not be associated with the correct program for opening it.”

This means the OS uses the file extension to decide which application to use to open a file. Changing or deleting the extension can result in the file not opening properly because it no longer matches the program expected to open it.

When a system administrator needs to troubleshoot a user’s laptop remotely, especially over a VPN, they would use remote assistance software. This allows full or partial control over the target system for diagnostic and support tasks.

“Remote assistance software enables support personnel to remotely access and control another computer to perform diagnostics or provide help, often used in IT support scenarios.” — CompTIA ITF+ Guide

Correct answer: D

The correct order for creating a network cable:

Measure and cut with wire cutter

Strip the wires

Attach Ethernet connector using a crimper

Finally, test the cable with a cable tester to ensure connectivity and proper pinout.

“After crimping the RJ-45 connectors, a cable tester is used to validate the electrical continuity and correct wiring order.” — CompTIA ITF+ Curriculum

Correct answer: A

Tablets typically connect to wireless networks using Wi-Fi, which adheres to the IEEE 802.11 standard (often seen as 802.11a/b/g/n/ac/ax). The correct protocol family for this type of connection is 802.11X (referring to Wi-Fi technologies broadly).

“Wireless devices such as tablets use the 802.11 standards to connect to Wi-Fi access points for network connectivity.” — CompTIA ITF+

Other options:

B. Thunderbolt and D. USB-C – Wired connection standards

C. Bluetooth – Short-range peripheral communication, not Wi-Fi

Correct answer: A

The CompTIA Tech+ Study Guide details that wireless performance and range are significantly affected by interference:

“Interference from other electronics and obstructions will lower the data rate. Radio frequency interference (RFI) from communications devices will degrade the signal. Microwave ovens and electrical motors are notoriously harsh on wireless signals. Solid objects, especially concrete block walls and steel, cut down on range as well.”

Hence, interference is the most likely cause for the reduced wireless coverage.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “Wireless Interference and Attenuation” (pp. 440–441).

Disk management is the OS feature used to create, delete, format, or partition storage devices. It allows users to manage drives and volumes locally.

“Disk management tools are used to manage and configure storage devices, including creating and formatting partitions and volumes.” — CompTIA ITF+ Operating System Features

Correct answer: D

The correct answer is A. To present identical content on multiple displays. Display mirroring is used when the same screen image must appear on more than one display, such as a laptop screen and a projector in a conference room. This is useful for presentations because the audience sees the same content the presenter sees. Mirroring does not improve cloud speed, add security by itself, or share files from network-attached storage.

Exact Extract/Reference: The Tech+ Study Guide explains that when “two or more displays are used at the same time to project the same image, that is called mirroring.” It also states that “all actions performed on one display” are shown on the mirrored display.

Personally Identifiable Information (PII) refers to any data that can be used to identify an individual uniquely. Full name and date of birth are classic examples of PII.

“PII includes data such as names, birth dates, Social Security numbers, and other information that can directly or indirectly identify a person.” — CompTIA ITF+ Security Essentials

Correct answers: A and B

The CompTIA Tech+ Study Guide defines:

“Devices that use radio frequency (RF) transmit a very limited range, typically only a few inches or so. This technology is fairly common in mobile payment applications. Because of the short distances involved, a related term you’ll see is near-field communication (NFC).”

NFC allows devices such as smartphones to securely transmit payment data over short distances—precisely the method used in vending machine purchases.

Verified Reference:

Chapter 2: Peripherals and Connectors — “Wireless Connections: NFC” (p. 99).

The CompTIA Tech+ Study Guide explains:

“For a table in a database to be relational, it must have a primary key. In fact, its creation is mandatory when a table is created. A primary key is one or more fields whose data is used to identify a record uniquely.”

It further adds:

“Primary keys for tables are stored in an index, which enforces the uniqueness requirement.”

Hence, the unique identifier for records in a relational database is the primary key.

Verified Reference:

Chapter 7: Database Fundamentals — “Primary Key” (pp. 394–395).

The CompTIA Tech+ Study Guide explains:

“A compiled programming language is one that requires the use of a compiler to translate it into machine code. Creating and using a program using a compiled language consists of three steps:

Write the source code.

Use a compiler to translate the source code into machine code.

Execute the program file, which usually has an .exe extension.”

Compiled languages package programs into executable files.

Verified Reference:

Chapter 6: Software Development Concepts — “Compiled Languages” (pp. 361–363).

This scenario describes a situation where a user has already successfully logged into the system (i.e., has been authenticated) but cannot access a particular network resource (the shared folder). This falls under the concept of authorization, which determines what actions or resources a user is permitted to access after authentication.

“Authorization is the process of granting or denying access to network resources once the user has been authenticated.” — CompTIA ITF+ Official Study Guide

Authentication verifies the identity of the user (e.g., username and password).

Authorization controls access rights (e.g., shared folders, files).

Accounting tracks user activity (e.g., audit logs).

Non-repudiation ensures actions or transactions cannot be denied later.

Therefore, the correct answer is B: Authorization.

A LAN (Local Area Network) connects devices in a limited geographical area such as a building or office.

“A LAN is a network that connects computers within a small geographical area such as a home, school, or office building.” — CompTIA ITF+ Networking Fundamentals

Correct answer: C

An embedded operating system is used in dedicated devices such as smart appliances, printers, or industrial machines. It performs specific functions and interacts with other systems, like sending alerts.

“Embedded operating systems are designed to run on specialized hardware with a fixed function, such as in appliances or vehicles.” — CompTIA ITF+ Official Guide

Correct answer: B

The least privilege model is a principle of giving users the minimum level of access needed to perform their roles. Removing unnecessary access aligns with this principle.

“Least privilege limits users to only the resources necessary for their duties, reducing the risk of unauthorized access.” — CompTIA ITF+ Security Essentials

Correct answer: A

A cable lock (also called a Kensington lock) physically secures the laptop to a fixed object, making it difficult to steal in public spaces.

“Cable locks are physical security devices used to deter laptop theft by anchoring the device to a desk or other stationary object.” — CompTIA ITF+ Official Guide

A. Firewall is software-based and protects data, not the device.

B. Privacy shields prevent screen visibility, not theft.

C. USB locks prevent port access but not physical theft.

Correct answer: D

The correct answer is B. Drivers. A printer driver is required so the operating system can communicate with the printer. If the printer is connected and appears to be set up but still does not work, an incorrect, missing, or outdated driver is the most likely cause. Services, permissions, and extensions can affect some systems, but the most direct and common issue after printer setup is driver installation.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that, in addition to connecting the printer, “you need to install a special piece of software called a printer driver so the operating system knows how to talk to the printer.” The guide also explains that after hardware installation, the operating system either detects the device automatically or the user must install a driver manually.

Verified and corrected questions 172–178:

The correct answer is C. 192.168.1.10. A valid IPv4 address is written in dotted-decimal notation, using four decimal numbers separated by periods. Option A is formatted like a MAC address, not an IP address. Option B has no dotted-decimal separation. Option D uses colons, which is not the standard IPv4 dotted-decimal format.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that an IP address is “typically written in dotted-decimal notation,” such as 192.168.10.55, and explains that each number represents an octet. The guide also distinguishes IP addresses from MAC addresses, noting that an IP address is logical and a MAC address is physical.

The correct answer is D. Integrity. The phrase “contents are unchanged” directly refers to whether data has remained accurate, consistent, and unaltered. In security, integrity is the principle that protects data from unauthorized or accidental modification. Confidentiality is about keeping private data from unauthorized viewing. Authentication verifies identity. Availability ensures systems or data can be accessed when needed. Only integrity matches checking that a downloaded file has not changed.

Exact Extract/Reference: The Tech+ Study Guide explains that integrity means “the data is accurate and consistent and from the indicated source,” and identifies data integrity concerns such as unauthorized information alteration. The guide’s summary also states that integrity is ensuring data is “true and correct.”

The correct answer is A. Unnecessary. The key phrase is “already handled natively by the OS.” Since the operating system already provides Wi-Fi settings management, the extra software is redundant and not required. It is not necessarily malicious, because the question does not say it is harmful. It is not best described as open-source, because licensing is unrelated to whether the software should be removed. “Unwanted” could describe software the user does not want, but “unnecessary” is more precise because the reason for removal is that the OS already performs the same function.

Exact Extract/Reference: The Tech+ Study Guide lists “Removal of software” and specifically includes “Unwanted,” “Unnecessary,” and “Malicious” software under software/security best practices. The guide also states that removing an application can free disk space and memory, and that Tech+ objective 6.2 expects knowledge of removing unwanted, unnecessary, and malicious software.

Process management in an operating system is responsible for controlling the execution of applications, assigning CPU time, and prioritizing active processes to optimize performance.

“Process management allocates resources, prioritizes applications, and ensures multitasking is efficiently handled by the OS.” — CompTIA ITF+ Operating Systems Guide

Correct answer: B

Pop-up blockers prevent new windows or tabs from opening, which can block reports that open in pop-up windows:

“If a web page uses pop-up windows to present information, a pop-up blocker may prevent the new content from loading.”

Cache clearing, accessibility options, or private browsing don’t directly affect hyperlink behavior.

The CompTIA Tech+ Study Guide states:

“Nearly every program running on a computer is run as a process. This includes system operations, background tasks, and applications… The Task Manager utility helps you see everything that’s running on a computer… If I have an app that’s taking up too much memory, I can click it and then click End Task to shut it down. This is also known as killing the process.”

Thus, process management is the OS function that allows users to stop (terminate) running applications.

Verified Reference:

Chapter 4: Operating Systems — “Process Management” (pp. 238–240).

This structure uses branching, which allows a program to make decisions based on conditions using " if, " " else if, " and similar statements.

“Branching allows the flow of execution in a program to change based on decisions or conditions.” — CompTIA ITF+ Programming Concepts

Correct answer: D

The correct answer is C. Assembly. Assembly language is the lowest-level language listed and is closest to machine code. It allows developers to write instructions that are translated into executable machine code. Scripting languages automate or run interpreted tasks, markup languages structure content such as web pages, and query languages are used to interact with databases.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that “assembly language is the lowest level of code in which people can write” and that it “allows the developer to provide instructions directly to the hardware.” It also states that assembly is translated into executable machine code by an assembler.

A touch screen functions as both an input and output device. According to the CompTIA ITF+ FC0-U71 Official Study Guide:

" A touchscreen display is a hybrid device combining input and output. It shows visual output like a standard monitor but also allows the user to interact directly by touching the screen. "

" Input devices allow users to provide data or control signals (e.g., keyboard, mouse, touchscreen). "

" Output devices show results from the computer ' s processing (e.g., monitor, printer, touchscreen). "

Touchscreens display information (output) and receive user input through touch (input). They do not perform storage, networking, processing, or logging.

A VPN (Virtual Private Network) creates a secure, encrypted connection over the internet between the user and a remote network, enabling secure access from home or public networks.

“VPNs provide a secure tunnel for transmitting data over unsecured networks, such as the internet, by encrypting all traffic between the client and the network.” — CompTIA ITF+ Security Topics

Other options:

A. LAN – Local and not for remote use

B. FTP – Transfers files but lacks modern encryption

C. DNS – Resolves domain names, not for access

Correct answer: D

A relational database uses tables consisting of rows and columns where a primary key uniquely identifies each row (record). As stated in the CompTIA ITF+ FC0-U71 Official Study Guide:

" Relational databases store data in tables consisting of rows and columns. Each table has a primary key, which uniquely identifies each record. "

" Document and key/value databases are types of NoSQL databases and do not use primary keys in the same structured tabular format. "

Non-structured databases (like object storage or big data repositories) do not enforce primary keys.

The correct answer is A. A flash drive is a small, portable local storage device, so it is useful when a user needs to copy or back up a local file and carry it to another location, such as home. Option B describes cloud storage. Option C describes network file sharing. Option D describes long-term archiving, which is not the best use case for a flash drive because flash drives are small, easy to misplace, and not ideal as long-term archive media.

Exact Extract/Reference: The CompTIA Tech+ Study Guide defines an external flash drive as “a small, portable SSD that connects through a USB port” and says its “primary benefit is portability.” The guide also lists flash drives as a locally attached backup storage option.

Fiber optic internet provides the fastest residential internet speeds due to its use of light for data transmission. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

" Fiber-optic cabling provides very high-speed data transfer using light signals, with much greater bandwidth and lower latency compared to DSL, cable, or satellite. "

" DSL and cable are slower and often shared among users, while satellite suffers from high latency. "

The correct answer is C. Generative. The typing error “Al” should be corrected to “AI.” Drafting a digital advertisement requires creating new content, such as marketing text, images, or other creative material. Generative AI is used to create content. Predictive AI predicts or suggests future actions. An AI assistant helps with general tasks, and a chatbot usually responds to specific user questions or customer-service interactions.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states, “The realm of generative AI focuses on creating content, including text, images, or videos.” It also says AI-generated content can include text forms and visual content, such as artwork, company logos, or videos.

RAM allows multiple applications to run simultaneously. Insufficient RAM causes performance drops:

“When several applications are open, the system relies heavily on RAM for temporary storage of active processes.”

Storage, motherboard, or NIC do not directly handle temporary application memory while multitasking.

Meaningful reporting refers to the process of analyzing and summarizing data into actionable insights to support business decisions.

“Reports generated from data analytics provide meaningful insights to support strategic decision-making by company leadership.” — CompTIA ITF+

Correct answer: A

According to the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025):

“The rules and structure of the database are called its schema. It defines the tables, forms, reports, queries, data types allowed, and pretty much everything else about the database.”

It also clarifies:

“The logical schema outlines the structure of the database, such as the tables and their fields (columns), and relationships between tables.”

Thus, an outline of a database’s structure is called a schema.

Verified Reference:

Chapter 7: Database Fundamentals — “Schema” (pp. 392–393).

The correct answer is D. Variable. In the pseudocode, Q receives input from the user and then prints that input. Since the value of Q can change each time the program loops back to line 10, Q is a variable. It is not a constant because constants do not change. It is not a function because it is not a reusable block of code. It is not an array because it does not represent a list of values.

Exact Extract/Reference: The CompTIA Tech+ Study Guide explains that a “constant” is a predefined number that does not change, while “a variable” means the value can change. It also states that variables can change throughout a program based on input.

The correct answer is B. Firewall. A firewall filters network traffic based on configured rules. To disallow inbound file-sharing connections, the firewall can block the relevant inbound traffic. Anti-malware scans for malicious software, multifactor authentication verifies identity, and certificates help establish trust or encryption, but a firewall is the correct control for blocking inbound network connections.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that firewalls “filter inbound and outbound network traffic based on rules defined by the administrator.” It also explains that host-based firewalls protect one computer and that Windows includes Microsoft Defender Firewall. The guide further explains that firewall ACLs determine which traffic is passed and which traffic is blocked.

Markup languages, such as HTML and XML, use tags (e.g., < p > , < title > , < body > ) to define the structure and presentation of data. They are not programming languages in the traditional sense, as they don ' t include logic or execution flow.

“Markup languages use tags to annotate and structure text. Common examples include HTML and XML.” — CompTIA ITF+ Software Concepts

Correct answer: A