CompTIA Updated FC0-U71 Exam Questions and Answers by arianna

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 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.

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).

The largest unit is determined by converting all values to the same unit:

2TB = 2,000GB

100GB = 100GB

4,000MB = 4GB

50KB = 0.00005GB

Thus, 2TB is the largest. As described in the CompTIA ITF+ FC0-U71 Study Guide:

“Data storage capacity is measured using standard units such as KB, MB, GB, and TB, where 1TB = 1,000GB.”