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

CD ROMs are

  1. magnetic storage devices

  2. optical storage devices

  3. primary storage devices

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

 CD-rROMS are OPTICAL DISK and are also referred as the optical storage device.

Multiple choice

Floppy disks are

  1. storage devices

  2. random access memories

  3. used for transferring data

  4. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Floppy disks are storage devices used for data storage and transfer. They are not random access memory (RAM) - they are secondary storage. While they can transfer data, their primary classification is as storage media.

Multiple choice

Collection of sector forms a

  1. cylinder

  2. track

  3. disk

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

A disk consists of multiple concentric tracks, and each track contains multiple sectors. The collection of sectors forms the complete disk structure. Cylinders are formed by tracks across multiple platters, not sectors.

Multiple choice

In which of the following redundant arrays of independent disks level, the single parity disk is a bottle-neck for writing, since every write requires updating the parity data?

  1. Registration

  2. Redundant arrays of independent level 3

  3. Redundant arrays of independent disks level 0

  4. Redundant arrays of independent disk level 1

  5. Two-very-safe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In this redundant arrays of independent disks level, the single parity disk is a bottle-neck for writting, since every write requires updating the parity data.

Multiple choice

Which of the following devices receives bytes from external peripherals for reading them using instructions executed on the processor or to send the bytes to external peripherals using instructions executed on processor?

  1. Data bus

  2. Address bus

  3. Port

  4. Control bus

  5. Control unit
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Port is used to receive  bytes from external peripherals for reading them using instructions executed on the processor or to send the bytes to external peripherals using instructions executed on processor.