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

The most important consideration when opening a file on anOperating System Graphical User Interface (OS GUI)is thefile extension. A file extension identifies thetype of fileanddetermines 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 anextension, 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 chooseOpen Withand 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 thefile extensionto decide which application to use to open a file.Changing or deleting the extensioncan result in the file not opening properly because it no longer matches the program expected to open it.

Anti-malwaresoftware is specifically designed to detect, quarantine, and remove malicious software from a system. It is the most appropriate tool for protecting a computer after a suspicious or infected file is downloaded.

“Anti-malware software scans downloaded files and running processes to identify and remove malicious software, providing real-time protection against viruses, trojans, and spyware.” — CompTIA ITF+ Study Guide

Other options:

B. Firewall – Prevents unauthorized access but doesn’t clean infections

C. Patching – Prevents exploitation of known vulnerabilities, not infection removal

D. Permissions – Limit access but do not remove malware

Correct answer: A

USB-Csupports 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 evenDisplayPortare primarily unidirectional video outputs.

OnlyUSB-Cfully supports modern bidirectional multimedia communication.

Correct answer: D

When a new vulnerability is discovered in software, thebest way to secure itis byapplying 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.

Installing software typically requires elevated permissions that standard user accounts do not have. The CompTIA ITF+ FC0-U71 Official Study Guide explains:

“An administrator account provides full system access, including installing or removing software, changing system settings, and managing user accounts.”

The user account does not have these privileges by default.

Least privilege refers to granting only the minimum permissions necessary (which would not typically include software installation for regular users).

Single factor refers to authentication methods, not access levels.

Since the employee is denied installation due to insufficient privileges,administrator accessis needed to complete the installation.

Aflat fileis 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

Account logsprovide details about authentication attempts and can confirm whether a user successfully logged in or was denied access.

“Authentication events are recorded in system and application logs, helping verify login success or failure.” — CompTIA ITF+ Security Concepts

Correct answer: A

The syntax shown uses tags like and

, which are characteristic of amarkup language, specifically HTML (HyperText Markup Language). Markup languages describe the structure and presentation of text.

“Markup languages, such as HTML and XML, are used to annotate text so that the computer can manipulate it. HTML is used to design the structure of web pages using tags like <body>,

, <h1>, etc.” — CompTIA ITF+ Official Guide

Other options:

Query languages like SQL retrieve data.

Compiled languages require compilation into machine code (e.g., C++).

Scripting languages are used for automation but don’t use markup syntax.

Correct answer: A

NVMe (Non-Volatile Memory Express)drives are high-speed storage devices that commonly use theM.2 form factor. M.2 allows for compact design and direct connection to the motherboard.

“M.2 is a compact form factor used for high-speed NVMe and SATA SSDs, enabling faster storage access in modern systems.” — CompTIA ITF+ Hardware Overview

Correct answer: A

In flowcharts, adiamondrepresents adecision 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