ARM Accredited Engineer
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Total Questions : 210
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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?
Which events would be counted using the Performance Monitoring Unit (PMU) in order to measure the data cache efficiency of an application?
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);
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?
When the processor is executing in Thumb state, which of the following statements is correct about the values stored in R15?
Which of the following properties is a required characteristic of a Symmetric Multiprocessing (SMP) system?
Which of these processors is only available as a single core configuration?
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?
Which of the following statements best describes a Board Support Package (BSP)?
In an experiment, the time taken for an application to complete a given task is measured using a stopwatch. Which THREE of the following make up the total time? (Choose three)
An application contains three calls to an external function, foobar(), which is defined in a shared (or dynamic) library. How many copies of foobar() will the linker place in the application image?
(Ignore linker inlining)
On a processor supporting the Security Extensions, what sequence of operations is required to move from Non-secure User mode to Secure state?
The following pseudocode sequence shows a flag being set to indicate that new data is ready to be read by another thread:
data = 123;
ready = true;
Assuming that the reader threads may execute on any other core of a multicore system, which of the following is the most efficient memory barrier to place between the two writes to prevent them being observed in the opposite order?
Which one of these statements is TRUE about code running on final hardware without a debugger attached?
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?
Which of the following would enable the use of a symmetric multiprocessing (SMP) operating system?
A Just-In-Time compiler writes instructions to a region of memory that is configured using a writeback cache strategy. For the locations that have been written, what is the MINIMUM cache maintenance that MUST be performed before the new instructions can be reliably executed?
Consider the following code sequence, executing on a processor which implements ARM Architecture v7-
A.
LDR r0, [r1]
STR r0, [r2]
STR r3, [r3]
R1 points to a location in normal memory. R2 and R3 point to device memory.
Which of the following statements best describes the ordering rules which apply to this sequence?
Which one of the following statements best describes the function of vector catch logic?
If a 16-bit Thumb instruction causes a Data Abort, which instruction would return from the handler to the instruction after the one that caused the data abort?
Which of the following register values would cause an unaligned access when the instruction LDRH r0, [r1] is executed?
How many bytes of stack are needed to pass parameters when calling the following function?
int foo( short arg_a, long long arg_b, char arg_c, int arg_d )
In a Cortex-A9 processor, when the Memory Management Unit (MMU) is disabled, which of the following statements is TRUE? (VA is the virtual address and PA is the physical address)
In the ARM instruction set what is the maximum branch distance for a Branch or Branch and Link instruction?
An ARMv7 implementation might include the VFPv4-D32 floating point extension. What does the '32' indicate?
In a symmetric multi-processing (SMP) software architecture, which of the following pairs of statements are TRUE? (Select the option in which BOTH statements are TRUE).
TESTED 28 Mar 2024
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