FC0-U71 CompTIA Tech+ Certification Exam Free Practice Exam Questions (2026 Updated)

In terms of storage measurement hierarchy:

1TB = 1,000GB

1GB = 1,000MB

1MB = 1,000KB

Therefore:

20TB = 20,000GB

2,000GB = 2,000GB

200MB = 0.2GB

2,000KB = 0.002GB

Thus, 20TB is the largest. The CompTIA ITF+ FC0-U71 Official Study Guide defines storage units in this way under data representation topics.

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.

The CompTIA troubleshooting methodology is clearly outlined:

" Once a theory of probable cause has been established, the next step is to test that theory. "

Testing confirms whether the identified potential cause is correct before proceeding with action planning, repairs, or documentation.

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

A query is a request for information from a database. Structured Query Language (SQL) is commonly used to retrieve specific records or information from a data set.

“A query is used to extract and retrieve specific data from a database based on defined criteria.” — CompTIA ITF+ Data Concepts

Correct answer: D

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 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).

Changing the router ' s password (particularly the Wi-Fi password) prevents unauthorized users from reconnecting to the network. It’s the most immediate and effective response.

“One of the most effective ways to secure a wireless network is by changing the default and existing passwords to prevent unauthorized access.” — CompTIA ITF+ Security Topics

Calling support may help but doesn’t address the issue directly.

Decreasing signal range may reduce but not eliminate access.

Resetting the router is more disruptive and unnecessary if the password can be changed.

Correct answer: C

An e-reader is specifically designed for reading digital books using e-ink displays, which are easy on the eyes and readable in bright sunlight. They are lightweight, power-efficient, and ideal for book reading.

“E-readers use electronic ink displays for reading digital books, providing long battery life and excellent visibility in various lighting conditions.” — CompTIA ITF+

Correct answer: B

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 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.

If the student’s built-in camera isn ' t functioning, it is likely due to a missing or outdated device driver. Updating the camera driver allows the OS to properly interface with the hardware.

“Drivers are essential software that enables communication between the OS and hardware devices. A malfunctioning camera often points to a driver issue.” — CompTIA ITF+

Correct answer: B

The CompTIA Tech+ Study Guide provides a conversion table for storage units:

“1 bit = 1 bit, a single 0 or 1.

8 bits = 1 byte (one text character).

1,000 bytes = 1 kilobyte (KB).”

Thus, 8 bits equals 1 byte.

Verified Reference:

Chapter 1: Core Hardware Components — Table 1.2 “Bit and Byte Conversions” (p. 36).

Browsers store previously loaded pages in their cache to improve performance. If outdated content is cached, clearing the cache forces the browser to load the latest version from the server.

“Clearing the browser cache removes stored versions of web pages and resolves display issues caused by outdated content.” — CompTIA ITF+

Correct answer: C

A firewall can block traffic between workstations if it ' s not properly configured. If a user cannot connect from one device to another on the network, it is likely that the firewall settings are preventing this communication.

“Firewalls control the incoming and outgoing network traffic based on predetermined security rules. If improperly configured, they may block legitimate access between devices.” — CompTIA ITF+ Study Guide

Other options:

B. Database – Not related to connectivity

C. Anti-malware – Protects from malicious software, not network configuration

D. Certificate – Used for secure communication, but not basic connectivity

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).

RAM (Random Access Memory) in smartphones and computers is most commonly measured in gigabytes (GB) today. Typical smartphone RAM ranges from 2GB to 16GB depending on performance and price.

“Memory capacity in modern devices like smartphones is measured in gigabytes (GB), reflecting their need to support multitasking and app usage.” — CompTIA ITF+ Official Resources

Other options:

KB and MB were used in earlier computing generations.

TB is used for storage, not RAM.

Correct answer: A

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

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.