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

The CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) defines the least privilege model as:

“One of the key foundations of an authorization system is the least privilege model. This states that users should be granted only the least amount of access required to perform their jobs, and no more. This principle applies to computers, files, databases, and all other available resources.”

This concept ensures that a student cannot access restricted folders such as a teacher’s network folder, because their role does not require that level of access.

Verified Reference:

Chapter 10: Security Concepts and Threats — “Authorization and the Least Privilege Model” (pp. 549–550).

Privacy involves protecting personal or sensitive information from being disclosed without consent. Sharing individuals’ birthdays and home addresses—even if they are public figures—violates the privacy principle.

“Privacy ensures that personal data is collected, used, and shared responsibly and legally. Exposing personal information in public forums can breach this principle.” — CompTIA ITF+ Official Objectives

Correct answer: C

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).

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

A primary key is a unique identifier for each record in a database table. It must be unique and not null across all rows. In this table, the field ID is the only column that uniquely identifies each row and does not repeat.

“A primary key is a field (or a set of fields) that uniquely identifies a record in a table. It ensures that each record can be uniquely retrieved.” — CompTIA ITF+ Official Study Guide

Analysis of other options:

Month, Day, Year, and Name can have duplicate values across multiple records and therefore do not serve as unique identifiers.

Correct answer: A

The ID field contains unique values for each record and is typically used as a primary key in a database. A primary key uniquely identifies each row in a table.

Month, Day, Year, and Name may have duplicates and do not guarantee uniqueness.

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.

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

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

When a system administrator needs to troubleshoot a user’s laptop remotely, especially over a VPN, they would use remote assistance software. This allows full or partial control over the target system for diagnostic and support tasks.

“Remote assistance software enables support personnel to remotely access and control another computer to perform diagnostics or provide help, often used in IT support scenarios.” — CompTIA ITF+ Guide

Correct answer: D

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 answer: C