CompTIA Tech+ FC0-U71 Updated Exam

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

“Inside the BIOS, you can make system configuration selections such as changing the system time, selecting a preferred boot device, or enabling/disabling features.”

Additionally, it details:

“The CMOS chip must have power constantly or it will lose its information (just like RAM does when your computer is powered off). To prevent CMOS from losing its rather important information, motherboard manufacturers include a small battery called the CMOS battery to power the CMOS memory.”

If the system time resets or becomes incorrect after power off, it indicates a BIOS or CMOS battery issue. Configuring or replacing the BIOS/CMOS settings resolves it.

Verified Reference:

Chapter 1: Core Hardware Components — “BIOS and CMOS” (pp. 20–21).

The correct answer is D. NVMe. NVMe is a very fast SSD data-transfer standard and is much faster than traditional HDDs, optical drives, and ordinary external flash drives. The original spelling “NvME” should be corrected to “NVMe.” Flash drives are portable but typically slower than internal NVMe storage. Optical drives and HDDs are also slower.

Exact Extract/Reference: The CompTIA Tech+ Study Guide states that NVMe is “incredibly fast” and that Generation 4 NVMe drives can transfer more than 7000 MB/s, while SATA SSDs top out at about 600 MB/s. It also states that an NVMe M.2 drive greatly outperforms a SATA M.2 drive and that any SATA SSD is several times faster than a conventional HDD.

According to the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), the SFP (Small Form-Factor Pluggable) connector is directly associated with fiber-optic networking. The guide lists:

“SFP (small form-factor pluggable) connectors are commonly used in fiber-optic connections to allow hot-swappable transceivers for different types of fiber cables.”

Additionally, the same guide’s chapter on Networking Concepts and Technologies explains:

“Fiber-optic around 2 Gbps – Incredibly fast and more expensive than DSL or cable.”

Therefore, fiber Internet is the only service type that uses SFP connectors for data transmission over optical cables.

Verified Reference:

Chapter 8: Networking Concepts and Technologies — “External network connections” and “Common Internet connection types and speeds” (pp. 429–435).

Chapter 2: Peripherals and Connectors — “SFP (small form-factor pluggable) connectors” (pp. 97–98).

In the CompTIA Tech+ Study Guide (Exam FC0-U71, 3rd Edition, 2025), an array is described as:

“An array is a data structure that stores multiple values of the same data type under a single variable name. Each value in the array can be accessed using an index or key. Arrays are commonly used to organize related sets of data such as names, numbers, or records that share a common context.”

The guide illustrates how arrays can hold tabular data, similar to a spreadsheet or database table:

“Arrays let programmers store data in a table-like format, using rows and columns to represent related values, such as months and corresponding totals. This makes it easier to manage and manipulate structured data programmatically.”

In contrast:

A constant is a fixed value that cannot change during program execution.

A function performs an operation or returns a value based on parameters.

A variable holds a single value that can change.

Since the dataset represents multiple related values (Food and Drinks) across months in a table structure, it is an array.

Verified Reference from CompTIA Tech+ Study Guide, Exam FC0-U71 (3rd Edition, 2025):

Chapter 6: Software Development Concepts — “Data Types and Structures” section (pages 371–372).

Exam Objective 6.2 — Recognize basic programming structures such as arrays and variables.