Buffer Exchange

Embedded System

This set of Embedded Systems Multiple Choice Questions & Answers (MCQs) focuses on “Buffer Exchange”.

1. Which of the following allows the multiple tasks to process data simultaneously?
a) single buffer
b) double buffer
c) buffer exchange
d) directional buffer

2. Which buffering mechanism is common to the SPOX operating system?
a) buffer exchange
b) single buffer
c) linear buffer
d) directional buffer

3. Which buffers exchange the empty buffers for full ones?
a) single buffer
b) buffer exchange
c) directional buffer
d) double buffer

4. Which process takes place when the buffer is empty?
a) read
b) write
c) read and write
d) memory access
.

5. Which process takes place when the buffer contains data?
a) read
b) read and write
c) acknowledge
d) write

6. Which of the following does not need to have a semaphore?
a) double buffer
b) single buffer
c) buffer exchange
d) directional buffer

7. Which buffer can assimilate a large amount of data before processing?
a) single buffer
b) double buffer
c) multiple buffers
d) directional buffer

8. Which can reduce the latency?
a) partial filling
b) complete filling
c) no filling
d) multiple buffers

9. Which of the following can indicate when the buffer is full or ready for collection?
a) intra-task communication
b) inter-task communication
c) memory task communication
d) peripheral task communication

10. What solution can be done for the inefficiency in the memory usage of small data?
a) same size buffer
b) single buffer
c) variable size buffer
d) directional buffer

) 8086

11. Which processor has a different segment buffer?
a) 8051
b) 8086
c) ARM
d) MC68HC11

12. Which of the following can combine buffers in a regular and methodical way using pointers?
a) buffer exchange
b) directional buffer
c) linked lists
d) double buffer

13. Which entry will have a special value in the linked list?
a) first entry
b) last entry
c) second entry
d) second last entry

14. Which entry can use the pointer in the linked list?
a) first entry
b) last entry
c) second entry
d) third entry

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