Computer Knowledge

Computer Memory and Storage

2,121 Questions

Computer memory and storage questions test foundational knowledge of hardware, cache mapping, and data transfer mechanisms. Key areas include Direct Memory Access, analog recording, and RAID levels. This section is essential for candidates preparing for banking and government computer proficiency tests.

Cache memory mappingDirect memory accessRAID storage levelsHard disk technologyOptical media storageMemory addresses

Computer Memory and Storage Questions

Multiple choice
  1. DRAM

  2. SRAM

  3. PROM

  4. EEPROM

  5. EPROM

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct as this me,mory generally has capacitors.Since charge on the capacitor leaks out the memory gets lost and needs refreshing.

Multiple choice
  1. Hit ratio = number of hits/number of misses

  2. Hit ratio = number of misses/number of hits

  3. Hit ratio = (1-number of hits)/number of misses

  4. Hit ratio = (1 - number of hits)/(number of misses + number of hits)

  5. Hit ratio = number of hits/(number of misses + number of hits)

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer because the numerator should be ''number of hits'', and denominator should be ''number of misses + number of hits''.

Multiple choice
  1. It holds the address of the data item to be retrieved from the main memory.

  2. It holds the starting address of the memory stack.

  3. It holds the address of the next instruction to be executed.

  4. It holds the instruction code currently being executed.

  5. It holds the address of the top element of the memory stack.

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

It is done by Stack Pointer.