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ARM Accredited Engineer EN0-001 Question # 32 Topic 4 Discussion

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ARM Accredited Engineer EN0-001 Question # 32 Topic 4 Discussion

EN0-001 Exam Topic 4 Question 32 Discussion:
Question #: 32
Topic #: 4

In a multi-processor system, there are four processors numbered 0, 1, 2 and 3. The state of the processors is as follows:

    CPU 0 and 1 are sleeping in low-power state following a WFI instruction. . CPU 2 is executing program code.

    CPU 3 is sleeping in low-power state following a WFE instruction.

CPU 2 executes a SEV instruction. What is the effect on the system?
A.

CPU 0: executing, CPU 1: executing, CPU 2: executing. CPU 3: executing

B.

CPU 0: executing, CPU 1: executing. CPU 2: executing. CPU 3: sleeping

C.

CPU 0: sleeping, CPU 1: sleeping. CPU 2: executing. CPU 3: executing

D.

CPU 0: sleeping, CPU 1: sleeping. CPU 2: sleeping, CPU 3: executing

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Actual exam question for ARM EN0-001 exam by Milo5248 at Aug 2, 2025, 12:00:00 AM

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