Computer Knowledge

Computer Memory and Storage

2,477 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

In which of the following addressing mode, the address of the operand is given in the instruction and data is available in the memory location which is provided in instruction?

  1. Index addressing mode

  2. Relative addressing mode

  3. Direct addressing mode

  4. Indirect addressing mode

  5. None of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

In this mode, address of the operand is given in the instruction and data is available in the memory location which is provided in instruction.

Multiple choice

Which of the following is/are false about virtual memory?

  1. It allows multiple programs to share the same physical memory.

  2. It allows programmers to write code as though they have a very large amount of main memory.

  3. Virtual memory automatically handles bringing in data from disk.

  4. All of the above

  5. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This is an incorrect statement as virtual memory is not responsible for this task. Virtual memory is neither a control program nor a control device.

Multiple choice

Which of the following addressing modes is used to determine the effective address by adding the content of the program counter to the address part of the instruction?

  1. Index addressing mode

  2. Relative addressing mode

  3. Direct addressing mode

  4. Indirect addressing mode

  5. Immediate addressing mode
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In the relative addressing mode, effective address is determined by adding the content of the program counter to the address part of the instruction.

Multiple choice

Which of the following types of block allocation in storage management is the one in which blocks of variable sizes are used for storage of data?

  1. Fixed block storage allocation

  2. Variable block storage allocation

  3. Fixed non-contiguous storage allocation

  4. Variable contiguous storage allocation

  5. Push
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This type of block allocation in storage management is the one in which blocks of variable sizes are used for storage of data.

Multiple choice

For what purpose is the swap space in the disk used?

  1. Saving temporary internet files

  2. Saving HTML pages

  3. Saving process data

  4. Storing TLB

  5. Saving device drivers
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Swap space is used when the amount of physical memory (RAM) is full. If the system needs more memory resources and the RAM is full, inactive pages in memory are moved to the swap space. While swap space can help machines with a small amount of RAM, it should not be considered a replacement for more RAM. Swap space is located on hard drives, which have a slower access time than physical memory.

Multiple choice

In external fragmentation which will be the best memory allocation method?

  1. Segmentation

  2. Debbuging

  3. Pagging

  4. Non-preemptive scheduling

  5. Preemptive scheduling
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Memory segmentation is the division of a computer's primary memory into segments or sections. In a computer system using segmentation, a reference to a memory location includes a value that identifies a segment and an offset within that segment.

Multiple choice

In which addressing mode decrementation of instruction specified contents of a register will be done initially and then those contents are used as operand's effective address?

  1. Direct addressing

  2. Indirect addressing

  3. Auto increment

  4. Immediate addressing

  5. Auto decrement
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

A special case of indirect register mode. The register whose number is included in the instruction code, contains the address of the operand. Decrement Mode = before operand addressing, the contents of the register is decrement.