You work as a computer technician. When you start your computer, you find that the computer’s
CMOS battery has failed. You replace the
CMOS battery. What will be your next step after replacing the CMOS battery?

A.
Run the DEFRAG utility.

B.
Create a partition on the hard disk drive.

C.
Run the SCANDISK utility.

D.
Reboot the computer and set the date and time.

Explanation:

When a computer’s CMOS battery is replaced, the system clock of the computer is reset. Therefore,
your next step after replacing the CMOS
battery will be to reboot the computer and to set the date and time.
What is a CMOS battery? Hide
A Complementary Metal Oxide Semiconductor (CMOS) battery is installed on the motherboard. It
provides backup to CMOS
to store computer hardware configuration, date, and time settings when a computer’s main power is
off.
Note: Incorrect date and time on the computer indicate failure of the CMOS battery.
Answer option C is incorrect. SCANDISK is a Windows utility that detects and corrects corruption in
the disk when a computer is not shut down
properly. It also checks and deletes the corrupt files that may be using up disk space. This helps in
improving the performance of a computer.
Answer option A is incorrect. DEFRAG is a system utility used to consolidate the fragmented files
stored on the hard disk of a computer. The
fragmented files are those files that are saved or stored in different locations of the hard disk. The
tool arranges such files and stores them on
the hard disk in contiguous blocks. The operating system can access these files at a faster rate than
the fragmented ones.
Answer option B is incorrect. Creating a partition on the hard disk drive has nothing to do with the
issue.
Reference: TechNet, Contents: “Chapter 21 – Troubleshooting Startup and Disk Problems”