CompTIA A+ Essentials Free Practice Test – Chapter 2 (41-45)

CompTIA A+ Essentials Free Practice Test and Practice Exam – Chapter 2

QUESTION NO: 41
A customer reports that their computer is displaying operating system not found while booting. The technician confirms that the computer booted fine the previous day and that no devices were added. The technician also confirms that no software changes were made to the system from the previous day. Which of the following is the problem?
A. The network cable is unplugged.
B. A diskette was placed in the disk drive.
C. The keyboard is unplugged.
D. The system has been infected with spyware.
Answer: B

QUESTION NO: 42
Which of the following are digital audio-only formats? (Select TWO).
A. AAC
B. WMV
C. WMA
D. AVI
E. DES
Answer: A,C

QUESTION NO: 43
Which of the following wireless technology standards can operate at a MAXIMUM of 54Mbps? (Select TWO).
A. 802.11a
B. 802.11b
C. 802.11g
D. 802.11k
E. 802.11n
Answer: A,C

QUESTION NO: 44
After verifying full system functionality, which of the following should a technician do NEXT when troubleshooting a problem?
A. Establish a theory of probable cause.
B. Identify user changes to the computer.
C. Move on to the next issue that requires troubleshooting.
D. Document findings, actions, and outcomes.
Answer: D

QUESTION NO: 45
A user notices that the battery light on the laptop is flashing when the laptop is on a docking station. Which of the following should the technician perform FIRST?
A. Reseat in the docking station
B. Reinstall the operating system
C. Remove and reseat the battery
D. Replace the laptop battery
Answer: A

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