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

The dual-port version of DRAM formerly used in graphics adaptors is

  1. FPM DRAM

  2. EDO DRAM

  3. VRAM

  4. DDR SDRAM
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

VRAM (Video RAM) is a specialized type of DRAM designed specifically for graphics adapters, featuring dual-port access that allows the processor to write data while the display controller reads it simultaneously.

Multiple choice

A floppy can be write protected by

  1. breaking the slider

  2. positioning the slider to cover the hole

  3. positioning the slider away from the hole

  4. a floppy cannot be write protected
Reveal answer Fill a bubble to check yourself
C Correct answer
Multiple choice

A spiral shape track formatting is present in

  1. Floppy Disk

  2. Optical Disk

  3. Hard Disk

  4. Half-inch Tape Cartridge
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Optical disks, such as CDs and DVDs, store data along a single continuous spiral track that starts from the center and moves outward, unlike the concentric circular tracks used in hard and floppy disks.

Multiple choice

Rotational delay time is also known as

  1. Seek time

  2. Shift time

  3. Latency

  4. Access time
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Rotational delay, or latency, is the time required for the desired data sector on a disk to rotate under the read/write head after the head has reached the correct track.

Multiple choice

Dynamic memory is also known as

  1. internal processor memory

  2. primary memory

  3. external storage memory

  4. non-volatile memory
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Dynamic RAM (DRAM) is used as the primary memory (main memory) in computers because it is volatile and provides fast access for the CPU to execute programs.

Multiple choice

RAID stands for

  1. Reproduce Array of Intelligent Disks

  2. Reproduce Array of Inexpensive Disks

  3. Redundant Array of Inexpensive Drives

  4. Redundant Array of Inexpensive Disks
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

RAID is an acronym for Redundant Array of Independent Disks (originally Inexpensive Disks), a technology used to provide data redundancy and performance improvement.

Multiple choice

Which of the following is the primary memory?

  1. RAM

  2. ROM

  3. CPU

  4. Main Memory

  5. All of the above

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

RAM (Random Access Memory) is the primary memory of a computer, used to store data currently being processed by the CPU.

Multiple choice

The secondary memory is also known as

  1. external memory

  2. auxiliary memory

  3. both (1) and (2)

  4. Internal memory

  5. None of these

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

Secondary memory, which is non-volatile and used for long-term storage, is commonly referred to as both external memory and auxiliary memory.

Multiple choice

The cache memory is a part of

  1. primary memory

  2. main memory

  3. secondary memory

  4. auxiliary memory

  5. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Cache memory is a high-speed memory component that sits between the CPU and the main memory (RAM) to speed up data access.

Multiple choice

CD-ROM stands for

  1. Compact Disk Read-Only Memory

  2. Cassette Disk Read-Only Memory

  3. Common Disk Read-Only Memory

  4. Colour Disk Read-Only Memory

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

CD-ROM is an acronym for Compact Disk Read-Only Memory, which is a type of optical storage medium.

Multiple choice

What do you mean by the term ROM?

  1. Random Only Memory

  2. Ready Only Memory

  3. Read Only Memory

  4. Run Only Memory

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

ROM stands for Read Only Memory, a type of non-volatile memory used in computers and other electronic devices.