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

The CompTIA Tech+ Study Guide classifies critical data as essential information that organizations depend on for daily functioning:

“Critical data is information without which an organization cannot function effectively. Examples include customer records, transaction data, and operational databases. The loss or corruption of such data can significantly impact business continuity.”

This type of data differs from “big data,” which refers to massive data sets used for analytics, and from “monetized data,” which refers to data sold or used for financial gain.

Verified Reference:

Chapter 12: Data Continuity and Computer Support — “Understanding Data Importance and Critical Data” (pp. 619–621).

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

“Some companies’ IT policies require that you change or reset your password at regular intervals, such as every 90 days. The rationale for having a password expiration policy is that the longer you keep a password, the more likely it is that someone has seen it or written it down.”

The guide further notes:

“Many companies have password policies in place that enforce strict requirements… The policy can also make users reset their password every so often, such as 90 days.”

This describes password expiration , which ensures that passwords are periodically updated to reduce security risks.

Verified Reference:

Chapter 11: Security Best Practices — “Password Changes” (pp. 596–598).

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

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

NVMe (Non-Volatile Memory Express) drives are high-speed storage devices that commonly use the M.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

Recording user actions is an example of accounting , which helps track what users do on a system, especially for auditing purposes.

“Accounting refers to the recording and logging of system activities, including tracking user actions within applications or services.” — CompTIA ITF+

Correct answer: A

In the database schema shown in the images, there are four rows (excluding the header row) representing data entries for four people (John, Jane, Allison, and Anna).

Each row represents a record in the database table, also known as a tuple . The term record refers to a complete set of fields (ID, Name, and Age) for one entry. So, counting the four rows:

John

Jane

Allison

Anna

That makes a total of 4 records in the database schema.

In the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) , the section on wireless encryption options explains:

“Exam objective 6.5 specifies that you should know Wi-Fi encryption options such as an open network, preshared key, WPA, WPA2, and WPA3… Focus on understanding that open networks are unsecure, and that WPA3 is better than WPA2, which is better than WPA.”

Further, it describes open networks as:

“Open portals pose security risks to the network and to users on the network. Use them with caution.”

Therefore, to allow anyone in the community to connect freely, the router must be set to Open (no password or encryption).

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “Wireless Security Options” (pp. 470–473).

The CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025) clearly states:

“Assembly language is the lowest level of code in which people can write. It allows the developer to provide instructions directly to the hardware.”

Furthermore, in the Exam Essentials section of the same chapter, it emphasizes:

“Know which programming language is best for direct hardware access. For direct hardware access, a low-level programming language such as assembly is the best.”

Therefore, assembly (assembled) languages offer the highest level of hardware optimization because they operate closest to machine code and interact directly with CPU instructions.

Verified Reference:

Chapter 6: Software Development Concepts — “Assembly Language” (pp. 356–357).

Chapter 6: Exam Essentials (p. 378).