FC0-U71 CompTIA Tech+ Certification Exam Free Practice Exam Questions (2025 Updated)

The CompTIA Tech+ Study Guide states:

“Floats are numbers that include decimals. Integers are whole numbers with no decimals, and strings are text.”

An example from the book:

“It’s a float data type, which is a number with a decimal place.”

Therefore, -2.34 represents a float.

Verified Reference:

Chapter 6: Software Development Concepts — “Data Types and Structures” (pp. 372–373).

A MAC (Media Access Control) address is a hardware address assigned to a network interface card. It follows a 48-bit hexadecimal format usually displayed as six pairs separated by colons or hyphens:

“MAC addresses typically appear as 00:50:09:2D:4D:94.”

192.68.10.24 is an IPv4 address, fe80:102d:cd62:5434:82ae is an IPv6 address, and 0x3476 is simply a hexadecimal number, not a MAC address.

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 If outdated credentials are appearing, clearing the cache ensures that old stored data is removed and the page loads fresh content.

“Cached data can include stored form data, which may result in outdated information being auto-filled.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

Task management tools such as Task Manager in Windows or Activity Monitor in macOS allow users to monitor running applications and processes. They also provide the functionality to force-close (end) applications that are not responding.

“Task Manager provides a way to close applications that are unresponsive and manage running processes.” — CompTIA ITF+ Official Guide

Correct answer: A

CPU speed is measured in megahertz (MHz) or gigahertz (GHz), indicating how many million or billion cycles the processor can execute per second.

“CPU performance is commonly measured in megahertz (MHz) or gigahertz (GHz), representing the processor’s clock speed.” — CompTIA ITF+

MB is for memory/storage size.

Mbps is for network speed.

MAC is a hardware address, not a performance metric.

Correct answer: A

The CompTIA Tech+ Study Guide details this advantage:

“If you need to have multiple concurrent users accessing data, you need a database. Flat files don’t do well when several people try to access them at once. In the vast majority of cases, one user might be able to write to the file, but all users will be limited to a read-only copy.”

It further states:

“Databases generally lock only on a record level… so multiple people can actively use the database at one time.”

Therefore, the primary advantage of databases over flat files is support for multiple concurrent users.

Verified Reference:

Chapter 7: Database Fundamentals — “When to Use Databases” (pp. 389–391).

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."

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

The units from smallest to largest are:

MB (Megabyte)

GB (Gigabyte)

TB (Terabyte)

PB (Petabyte)

Thus, PB (Petabyte) is the largest unit listed.

“Data storage is measured in bytes, with increasing units from kilobytes (KB) to megabytes (MB), gigabytes (GB), terabytes (TB), and petabytes (PB).” — CompTIA ITF+ Study Guide

Correct answer: C

A flat file is a simple database format often stored as a plain text or CSV file. It is ideal for small data sets where speed and simplicity are required.

“Flat files are simple and fast for storing small amounts of data and are easy to process without requiring a full database management system.” — CompTIA ITF+ Data Concepts

Correct answer: A

The CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) explains:

“Inside the BIOS, you can make system configuration selections such as changing the system time, selecting a preferred boot device, or enabling/disabling features.”

Additionally, it details:

“The CMOS chip must have power constantly or it will lose its information (just like RAM does when your computer is powered off). To prevent CMOS from losing its rather important information, motherboard manufacturers include a small battery called the CMOS battery to power the CMOS memory.”

If the system time resets or becomes incorrect after power off, it indicates a BIOS or CMOS battery issue. Configuring or replacing the BIOS/CMOS settings resolves it.

Verified Reference:

Chapter 1: Core Hardware Components — “BIOS and CMOS” (pp. 20–21).

Clicking the lock icon next to a website’s URL allows users to view the security certificate, verify its issuer, expiration date, and encryption level—validating that the site is using HTTPS and is trusted.

“Browsers display a lock symbol for secure (HTTPS) websites. Clicking it reveals the SSL/TLS certificate details to verify the site’s authenticity.” — CompTIA ITF+ Security Essentials

Correct answer: A

When the network is unavailable, portable storage like a flash drive (USB storage device) is suitable for transferring large files:

“Flash drives provide portable storage solutions capable of handling large data files.”

NAS (network-attached storage) requires a functioning network. RAM is volatile memory not used for file transfer, and cloud storage requires internet connectivity.

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

Artificial intelligence (AI) powers predictive text by analyzing user input patterns and language models to suggest likely words or phrases.

“AI enables predictive text by using language models and historical input to forecast what the user intends to type next.” — CompTIA ITF+ Emerging Technologies

Correct answer: C

Line 10 starts with “FOR Q=1 TO 100,” which is a loop construct. It defines a loop that will run 100 times, incrementing Q from 1 to 100 and executing the enclosed lines (20 and 30).

“Loops are programming constructs that repeat a set of instructions until a condition is met. A ‘FOR’ loop is a common control structure in procedural programming.” — CompTIA ITF+ Official Objectives

Other options:

Attribute applies to objects, not control flow.

Sequence is the overall flow of code lines.

Branches involve decision-making (e.g., IF/ELSE), not repetition.

Correct answer: D

Device physical addresses, such as MAC (Media Access Control) addresses, are represented in hexadecimal format. A typical MAC address looks like 00:1A:2B:3C:4D:5E, using base-16 values (0–9 and A–F).

“MAC addresses are 48-bit identifiers assigned to network interfaces, commonly displayed in hexadecimal format.” — CompTIA ITF+ Networking Fundamentals

Correct answer: A

In CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), the section “Reviewing Throughput Speeds” explains:

“The most basic measure of throughput is in bits per second (bps)—that is, how many bits are transmitted across the network media (or wireless connection) any given second. Each of the following designations increases that speed by 1000 times:

■ Kilobits per second (Kbps)

■ Megabits per second (Mbps)

■ Gigabits per second (Gbps)

■ Terabits per second (Tbps)”

This shows that Mbps (megabits per second) is the standard measurement unit for Internet connection speed.

802.11X is a wireless security standard,

MHz measures processor frequency, and

Bytes measure data size, not transfer rate.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “Reviewing Throughput Speeds” (pp. 424–425).

Chapter 2: Peripherals and Connectors — “Throughput units of measure” (p. 80).

USB-C supports bidirectional communication, which means it can both send and receive data, including video, audio, power, and data signals over the same cable. This is unlike traditional video cables such as VGA, DVI, or even DisplayPort, which primarily transmit data in one direction.

“USB-C is a reversible connector capable of transmitting power, data, video, and audio signals. It is also bidirectional, allowing two-way communication between devices.” — CompTIA ITF+ Study Guide

VGA, DVI, and even DisplayPort are primarily unidirectional video outputs.

Only USB-C fully supports modern bidirectional multimedia communication.

Correct answer: D