Pass the CompTIA Tech+ FC0-U71 Questions and answers with Dumpstech

A char (character) represents a single letter, number, or symbol. It differs from a string, which is a sequence of characters.

“The char data type stores a single alphanumeric character or symbol.” — CompTIA ITF+ Programming Fundamentals

Correct answer: C

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

The correct answer is A. Remove unnecessary software. Removing software that is not needed is a device-hardening step. Unnecessary applications can increase the attack surface of a laptop, so removing them helps reduce vulnerabilities. Installing drivers may be required for hardware functionality, but it is not the best security improvement. Configuring backups helps with recovery, but it does not directly harden the device. Benchmark testing measures performance, not security.

Exact Extract/Reference: The CompTIA Tech+ Study Guide explains that device hardening makes a device harder to exploit and includes “removing or disabling unused software and services.” The guide’s Chapter 11 lab also lists the task “Remove unwanted, unnecessary, or malicious software.”

Although basic scanner functionality may work with default drivers, full functionality (like programmable buttons) often requires the manufacturer ' s software suite. Installing the correct software from the vendor ensures that all features are supported.

“Peripheral devices may require manufacturer-specific drivers and utilities to enable full feature support. Downloading from the vendor’s website ensures compatibility.” — CompTIA ITF+

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

Data at rest refers to information stored on a device or disk, such as a hard drive. The encryption that protects it is typically file-level encryption (or full-disk encryption).

“File-level encryption applies encryption to individual files or directories on storage media and is used to protect data at rest.” — CompTIA ITF+ Study Guide

VPN and HTTPS protect data in transit.

Plaintext means data is unencrypted, and therefore is not protective.

Therefore, A is the correct answer.

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

“A router is a highly intelligent network connectivity device that can connect multiple network types to each other. Routers use routing tables to store network addresses and route packets based on the best path available.”

It further clarifies:

“Wireless routers are common in homes and offices. Functionally, wireless routers work just like their wired cousins.”

The default gateway in a home network is the router, as it serves as the device that connects the internal local area network (LAN) to the external Internet.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “Router” section (pp. 446–447).

Figure 8.8 — “A wireless router.”

The correct answer is A. Flowchart. A flowchart is used before coding to visually plan how a program flows from one step to the next. A linear sequence is a set of ordered logical steps, and a flowchart is designed to show that order clearly. Object-oriented programming is a programming model based on objects and classes, not a planning tool for a sequence. Branching is logic that chooses between paths, and Boolean is a true/false data type or result.

Exact Extract/Reference: The Tech+ Study Guide states that “A flowchart is a visual representation of a program that uses boxes to represent the logic” and that flowcharts help developers “visualize the flow of the program.” It also states that flowcharts show the “order of operations within a program.” The review answer confirms that “A flowchart is designed to depict visually the sequence of events and logic within a program.”

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.