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

The question asks how the value 9 can be represented using only ones and zeros, which is the definition of binary. In binary, the decimal number 9 is represented as 1001.

“Binary is a base-2 numeral system that represents numeric values using only two symbols: 0 and 1. Computers use binary to process and store all data.” — CompTIA ITF+ Study Guide

Correct answer: C

The correct answer is C. UPS. A UPS, or uninterruptible power supply, provides temporary battery power during a power outage. This gives users or systems enough time to save work and shut down safely. Cloud storage, external drives, and file servers can store data, but they do not provide temporary power during an outage.

Exact Extract/Reference: The CompTIA Tech+ Study Guide defines a UPS as “a battery backup system” and states that during a power outage or brownout, it can supply power “for a limited amount of time and provide for a graceful shutdown.” The guide also states that if power fails, UPS batteries can power the computer long enough for the administrator to safely power it down.

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.

Input devices allow users to interact with the computer by sending data to it. The most common input devices for a desktop PC setup are:

Mouse – allows the user to point, click, and interact with the GUI.

Keyboard – used to enter text and commands.

“Input devices such as the keyboard and mouse are essential for entering data into a computer.” — CompTIA ITF+ Study Guide

Other options explained:

A. Printer – Output device

D. CPU – Core processing unit, not an input device

E. Speaker – Output device

F. SSD – Storage device

Correct answers: B and C

A VPN (Virtual Private Network) creates a secure, encrypted connection over the internet between the user and a remote network, enabling secure access from home or public networks.

“VPNs provide a secure tunnel for transmitting data over unsecured networks, such as the internet, by encrypting all traffic between the client and the network.” — CompTIA ITF+ Security Topics

Other options:

A. LAN – Local and not for remote use

B. FTP – Transfers files but lacks modern encryption

C. DNS – Resolves domain names, not for access

Correct answer: D

Process management in an operating system is responsible for controlling the execution of applications, assigning CPU time, and prioritizing active processes to optimize performance.

“Process management allocates resources, prioritizes applications, and ensures multitasking is efficiently handled by the OS.” — CompTIA ITF+ Operating Systems Guide

Correct answer: B

The CompTIA Tech+ Study Guide explains:

“Remote support software allows technicians to connect to a user’s computer from another location, troubleshoot issues, install applications, and perform updates without physically being at the same site.”

Additionally, the review question section confirms:

“You are setting up a technical support help desk for a new app. What type of software should you get to help the technicians fix problems more effectively?

Answer: Remote support.”

Thus, the technician in another state uses remote support software to perform the installation.

Verified Reference:

Chapter 5: Software Applications — “Remote Support Software” (pp. 347–348).

This structure uses branching, which allows a program to make decisions based on conditions using " if, " " else if, " and similar statements.

“Branching allows the flow of execution in a program to change based on decisions or conditions.” — CompTIA ITF+ Programming Concepts

Correct answer: D

The CompTIA Tech+ Study Guide explains:

“Firewalls filter network traffic. Firewalls filter inbound and outbound network traffic based on rules defined by the administrator. That list of rules is called an access control list (ACL). By default, most firewalls are configured as default deny, which means that all traffic is blocked unless specifically authorized by the administrator.”

Therefore, a firewall is the network security device that primarily permits and restricts traffic based on predefined rules.

Verified Reference:

Chapter 5: Software Applications — “Software Firewalls” (pp. 316–317).

Chapter 8: Networking Concepts and Technologies — “Firewalls” (pp. 447–448).

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 answer: A