Free CompTIA Tech+ Certification Exam FC0-U71 Exam Questions

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 answe r: D

The CompTIA Tech+ Study Guide lists input devices explicitly:

''Input devices include keyboards, mice, scanners, and web cameras---any device that allows the user to enter data into the computer.''

In contrast, printers and speakers are output devices, while a motherboard is an internal component.

Verified Reference:

Chapter 2: Peripherals and Connectors --- ''Input and Output Devices'' (pp. 102--104).

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 answe r: C

The correct answer is C. Databases provide better data organization, indexing, and querying. A flat file is a two-dimensional structure made of rows and columns, such as a simple spreadsheet. Databases are better for larger, more complex, multiuser, scalable, searchable data systems. Databases can manage relationships between data points, support queries and reports, and provide stronger data persistence, availability, and security. A flat file does not represent a relational system, and query languages are associated with databases rather than basic flat files.

Exact Extract/Reference: The Tech+ Study Guide explains that a flat file has ''two dimensions, rows and columns,'' while databases can ''manage far more complicated relationships between data points.'' It also states that databases are better when multiple users, large quantities of data, speed, scalability, data persistence, data availability, and security matter. The guide further states that databases can be queried and reports can be run from them.

The correct answer is B. 101101. Hexadecimal is base-16. The hexadecimal value 2D equals 2 16 plus D. Since hexadecimal letters A through F represent decimal values 10 through 15, D represents 13. Therefore, 2D equals 32 + 13 = 45 in decimal. In binary, 45 is 101101 because it equals 32 + 8 + 4 + 1.

Exact Extract/Reference: The CompTIA Tech+ Study Guide explains that hexadecimal is ''base-16'' and that letters A through F represent decimal numbers 10 through 15. It also provides the binary place values used for conversion: 128, 64, 32, 16, 8, 4, 2, and 1.

Verified and corrected questions 166--171:

RAM (Random Access Memory) is volatile memory, meaning its contents are erased when power is removed. According to the CompTIA ITF+ FC0-U71 Official Study Guide:

''RAM is volatile storage, which means that it requires constant power to maintain the stored information. When power is turned off, all data in RAM is lost.''

BIOS (firmware), NIC (hardware interface), and CPU (hardware processor) remain unaffected by shutdowns regarding stored information.

In the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), the section on wireless encryption options explains:

''Exam objective 6.5 specifies that you should know Wi-Fi encryption options such as an open network, preshared key, WPA, WPA2, and WPA3... Focus on understanding that open networks are unsecure, and that WPA3 is better than WPA2, which is better than WPA.''

Further, it describes open networks as:

''Open portals pose security risks to the network and to users on the network. Use them with caution.''

Therefore, to allow anyone in the community to connect freely, the router must be set to Open (no password or encryption).

Verified Reference:

Chapter 8: Networking Concepts and Technologies --- ''Wireless Security Options'' (pp. 470--473).

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 answe r: A

If a USB port is disabled in the BIOS or device manager, the system won't detect devices connected to it. This is the most likely cause if nothing happens when a USB device is inserted.

''Hardware ports can be disabled via firmware settings or device policies, which prevents detection of peripherals.'' --- CompTIA ITF+ Hardware Troubleshooting

Correct answe r: A

An e-reader is designed specifically for reading digital books in a portable, lightweight format:

''E-readers are mobile devices optimized for reading electronic books, offering portability, long battery life, and digital storage of thousands of titles.''

Servers, external drives, and workstations are either not portable or not designed for reading books.

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 answe r: A

A loop is a programming construct that repeats a set of instructions while a condition is true. This is used to automate repetitive tasks in code.

''Loops are used in programming to execute the same block of code multiple times under specific conditions.'' --- CompTIA ITF+ Programming Concepts

Correct answe r: 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).

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.

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.