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

Changing the router's password (particularly the Wi-Fi password) prevents unauthorized users from reconnecting to the network. It’s the most immediate and effective response.

“One of the most effective ways to secure a wireless network is by changing the default and existing passwords to prevent unauthorized access.” — CompTIA ITF+ Security Topics

Calling support may help but doesn’t address the issue directly.

Decreasing signal range may reduce but not eliminate access.

Resetting the router is more disruptive and unnecessary if the password can be changed.

Correct answer: C

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+

If the student’s built-in camera isn't functioning, it is likely due to a missing or outdated device driver. Updating the camera driver allows the OS to properly interface with the hardware.

“Drivers are essential software that enables communication between the OS and hardware devices. A malfunctioning camera often points to a driver issue.” — CompTIA ITF+

Correct answer: B

Presentation software (e.g., Microsoft PowerPoint, Google Slides) is specifically designed to display information to an audience in a visual and organized format, making it ideal for meetings.

“Presentation software is used to create slide-based content that can be projected or shared in meetings to communicate ideas visually and effectively.” — CompTIA ITF+ Study Guide

Correct answer: D

The CompTIA Tech+ Study Guide states:

“Floats are numbers that include decimals. Integers are whole numbers with no decimals, and strings are text.”

An example from the book:

“It’s a float data type, which is a number with a decimal place.”

Therefore, -2.34 represents a float.

Verified Reference:

Chapter 6: Software Development Concepts — “Data Types and Structures” (pp. 372–373).

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.

The CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) explains that software requiring activation often stops working after a trial period—typically 30 days—until a valid product key is entered:

“Activating software is a different story—you have to do it. Either you will need to enter the product key before the app will work the first time, or it might work for a few times for free then ask you to activate. Some products… include activation features that lock the installed copy… Usually you have 30 days to do so, or a certain number of uses, before it stops working.”

This clearly identifies a product key as the required input to activate or continue using the software.

Verified Reference:

Chapter 5: Software Applications — “Registering and Activation” (pp. 288–290).

Personally Identifiable Information (PII) refers to any data that can be used to identify an individual uniquely. Full name and date of birth are classic examples of PII.

“PII includes data such as names, birth dates, Social Security numbers, and other information that can directly or indirectly identify a person.” — CompTIA ITF+ Security Essentials

Correct answers: A and B

The CompTIA troubleshooting methodology is clearly outlined:

"Once a theory of probable cause has been established, the next step is to test that theory."

Testing confirms whether the identified potential cause is correct before proceeding with action planning, repairs, or documentation.

CPU speed is measured in megahertz (MHz) or gigahertz (GHz), indicating how many million or billion cycles the processor can execute per second.

“CPU performance is commonly measured in megahertz (MHz) or gigahertz (GHz), representing the processor’s clock speed.” — CompTIA ITF+

MB is for memory/storage size.

Mbps is for network speed.

MAC is a hardware address, not a performance metric.

Correct answer: A