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EN0-001 Practice Exam Questions and Answers

ARM Accredited Engineer

Last Update 18 hours ago
Total Questions : 210

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Question # 1

When linking with the standard C library, which library functions MUST be redefined in order to port your code to a new piece of production hardware?

Options:

A.  

Functions that are not compliant with the ISO C library standard

B.  

Functions that are not compliant with the 1985 IEEE 754 standard for binary floating-point arithmetic

C.  

Target-dependent functions which use semihosting

D.  

Functions called implicitly by the compiler

Discussion 0
Question # 2

Which events would be counted using the Performance Monitoring Unit (PMU) in order to measure the data cache efficiency of an application?

Options:

A.  

Memory read instructions, and memory write instructions

B.  

Architecturally executed instructions, and instruction fetches causing a cache line refill

C.  

Memory access instructions causing a cache line refill, and memory read and write operations causing a cache access

D.  

Memory read or write operations causing a cache access, and architecturally executed instructions

Discussion 0
Question # 3

When the software floating point emulation library is used, how will the parameters be passed to the following function?

void foo(float f1, float f2, float f3, float f4);

Options:

A.  

On the stack

B.  

In registers s0-s3

C.  

In registers d0-d3

D.  

In registers r0-r3

Discussion 0
Question # 4

A C code segment contains three calls to a function, foobar ().

This code segment is to be linked with a static library that defines foobar ().

Ignoring inlining, how many copies of foobar () will the ARM linker place in the output?

Options:

A.  

None

B.  

Always one

C.  

Always three

D.  

One or more depending on optimization level

Discussion 0
Question # 5

When the processor is executing in Thumb state, which of the following statements is correct about the values stored in R15?

Options:

A.  

Bits[31:16] are duplicated with bits[15:0]

B.  

The PC value is stored in bits[31:1] and bit[0] is treated as zero

C.  

The PC value is stored in bits[31:16] and bits[15:0] are undefined

D.  

The PC value is stored in bits[15:0] and bits[31:16] are undefined

Discussion 0
Question # 6

Which of the following properties is a required characteristic of a Symmetric Multiprocessing (SMP) system?

Options:

A.  

All processors have the same view of memory

B.  

An even number of processors is included

C.  

All processors run in the same power state

D.  

All processors switch between operating system tasks in lock-step

Discussion 0
Question # 7

Which of these processors is only available as a single core configuration?

Options:

A.  

Cortex-A5

B.  

Cortex-A8

C.  

Cortex-A9

D.  

Cortex-A15

Discussion 0
Question # 8

On an ARM processor that does not implement Security Extensions, which one of the following can be the starting address of the exception vector table?

Options:

A.  

0xFFFFFFFF

B.  

0xFFFFFFF0

C.  

0xFFFF0000

D.  

0x0000FFFF

Discussion 0
Question # 9

Capturing processor execution trace is characterized as being:

Options:

A.  

Influenced by breakpoints.

B.  

Intrusive on normal processor operation.

C.  

Inaccurate regarding code execution history.

D.  

Not intrusive on normal processor operation.

Discussion 0
Question # 10

Which of the following statements best describes a Board Support Package (BSP)?

Options:

A.  

PC interface hardware for configuring a boot monitor

B.  

Hardware specific source code needed for operating system support

C.  

A working port of Linux for a specific hardware platform

D.  

Debugging hardware and software supplied with a development board

Discussion 0
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