ARM EN0-001 Actual Free Exam Questions & Community Discussion
Which TWO of the following options can the ARM Compiler (armcc) directive__packed be used for? (Choose two)
Correct Answer: A,C
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In an ARMv7-R processor, with which level of the memory system is the Memory Protection Unit (MPU) associated?
Correct Answer: B
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In a hardware system that runs software providing secure systems, which of the following describes the behavior of external memory and peripherals?
Correct Answer: B
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The ARMv7-A virtual memory management system supports 32-bit (short) and 64-bit (long) page table descriptors. The sizes of a small page in a short descriptor and a small page in a long descriptor are:
Correct Answer: B
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The Memory Protection Unit (MPU) of Cortex-R4 performs which of the following tasks?
Correct Answer: A
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An external debugger would need to clean the contents of the processor data cache in which of the following cases?
Correct Answer: A
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Which of these C99 keywords can be used to indicate that two arrays do not overlap?
Correct Answer: C
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The size of a C 'int' type in the ARM architecture is:
Correct Answer: A
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A simple system comprises of the following memory map:
Flash - 0x0 to 0x7FFF
RAM - 0x10000 to 0X17FFF
When conforming to the ABI, which of the following is a suitable initial value for the stack pointer?
Flash - 0x0 to 0x7FFF
RAM - 0x10000 to 0X17FFF
When conforming to the ABI, which of the following is a suitable initial value for the stack pointer?
Correct Answer: B
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In which of the following situations would you use a mutex to avoid synchronization problems?
Correct Answer: B
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A simple method of measuring the performance of an application is to record the execution time using the clock on the wall or a wristwatch.
When is this method INAPPROPRIATE?
When is this method INAPPROPRIATE?
Correct Answer: D
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