ARM EN0-001 Actual Free Exam Questions & Community Discussion
In general, when programming in C, stack accesses will be reduced by:
Correct Answer: A
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Implementing loops using a decrementing counter which exits the loop when a counter reaches zero can be beneficial for power and performance. This is because:
Correct Answer: C
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Which instruction would be used to return from a Reset exception?
Correct Answer: D
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In Architecture ARMv7-A which one of the following has a known physical address at power-on reset?
Correct Answer: A
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Which of the following operations would count as intrusive to normal processor operation?
Correct Answer: D
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Processors which implement the ARMv7-A architecture can be configured to allow unaligned memory access. Unaligned accesses have a number of advantages, disadvantages, and limitations.
Which TWO of the following statements are true? (Choose two)
Which TWO of the following statements are true? (Choose two)
Correct Answer: B,D
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A deeply embedded real-time industrial control system is missing some hard real-time interrupt deadlines. Which of the following performance analysis techniques is the most suitable for identifying which routines are causing the problem?
Correct Answer: C
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In a Cortex-A processor, after which TWO of these events is a cache maintenance operation required to ensure reliable code execution? (Choose two)
Correct Answer: A,E
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A 32KB 4-way set associative instruction cache supports a cache line size of 64 bytes. How many bits are required to index a cache line in a way?
Correct Answer: A
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Which power mode describes the state where the ARM processor is powered down, but its Level 1 caches remain powered?
Correct Answer: A
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