Free Practice Questions for CompTIA FC0-U71 Exam

The correct answer is C. Onboard NICs are built into the motherboard. An onboard NIC is integrated into the motherboard, while an expansion card NIC is a separate add-on card installed into an expansion slot. The question asks for the primary difference, not speed or cost. Onboard does not automatically mean faster or more expensive.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that Tech+ objective 2.2 expects knowledge of “wired and wireless cards as well as onboard (integrated into the motherboard) versus expansion cards.” It also explains that “most computers today have the NIC circuitry integrated into their motherboards.”

Output devices display or present data to users:

“A Smart TV displays visual and audio output, qualifying it as an output device.”

Web cameras, keyboards, and microphones are input devices that capture data rather than display or present it.

In flowcharts, a diamond represents a decision point — a place where the program branches based on a yes/no or true/false condition.

“A diamond shape in a flowchart is used to depict a decision, indicating that the flow can take different paths based on a condition.” — CompTIA ITF+ Programming Concepts

Correct answer: B

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).

An open-source license allows users to access, modify, and redistribute the software’s source code. It supports user customization and community contributions.

“Open-source software provides access to the source code, allowing users to inspect, modify, and enhance the software.” — CompTIA ITF+ Licensing and Software Concepts

Correct answer: C

Because the pay rate is fixed and does not change for all workers, it is best represented as a constant in code. Constants are variables whose values do not change during execution.

“Constants are used in programming to represent fixed values that do not change during the run of a program.” — CompTIA ITF+ Software Development Guide

Correct answer: C

Although a phone number contains only digits, it is best stored as a string because:

It doesn’t require mathematical operations.

It may include formatting symbols like dashes or parentheses.

“Phone numbers are stored as strings because they are identifiers, not values for computation.” — CompTIA ITF+ Data Types

Correct answer: A

A GPU (Graphics Processing Unit) is a specialized processor designed to perform calculations related to rendering images and videos. It’s an example of a processing component.

“The GPU is a processor dedicated to graphical computations and image rendering, assisting or replacing the CPU in handling visual data.” — CompTIA ITF+ Hardware Essentials

Correct answer: C

When a new vulnerability is discovered in software, the best way to secure it is by applying updates (patches) released by the software vendor. According to the CompTIA ITF+ objectives:

“Vendors regularly release software updates and security patches to fix vulnerabilities that could be exploited by attackers. Installing these patches promptly is crucial for maintaining system security.”

Although configuring a firewall and authentication improves overall security, they do not directly patch or fix the vulnerability. Uninstalling may be an option only if a patch is unavailable or the software is no longer needed. Therefore, the best and most proactive response is B: Apply updates.

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).