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Arizona CompTIA A+ Practice 20

Practice 20 for CompTIA A+ Exam learners in Arizona: 25 questions, explained answers, and a review routine.

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Question 1

1

A technician suspects a specific application causes high CPU use. Which observation would best test that hypothesis?

Question 2

2

A tablet displays a clear image, but touch input fails across the screen. An external pointing device works. Which subsystem is most directly implicated?

Question 3

3

A successful loopback test is performed on a computer. Why does this not prove that its cable reaches the network switch?

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