Practice 18 for CompTIA A+ Exam: 25 questions, explained answers, and a review routine.
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Question 1
1
A laptop uses the correct Wi-Fi network name, but authentication fails after the organization rotates its wireless credentials. What is a sensible first check?
Question 2
2
A virtual-machine snapshot is stored on the same storage system as the VM. Why is an independent backup still valuable?
Question 3
3
Before an approved firmware update, what preparation most directly supports recovery if the update fails?
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