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

Which of the following methods used in memory management is the one in which relocation of processes in memory takes place, so that fragmented holes are converted into one contiguous hole in the memory?

  1. Paging

  2. Compaction

  3. Segmentation

  4. Demand paging

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

This method used in memory management is the one in which relocation of processes in memory takes place, so that fragmented holes are converted into one contiguous hole in the memory.

Multiple choice

Which of the following allocation methods of disk space is the one which requires a file to occupy contiguous blocks on the disk and because of this constraint, disk access time is reduced?

  1. Linked allocation

  2. Indexed allocation

  3. Contiguous allocation

  4. Fixed allocation

  5. Variable allocation
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

This allocation method of disk space is the one which requires a file to occupy contiguous blocks on the disk and because of this constraint, disk access time is reduced.

Multiple choice

Expand SATA, which is used as hardware component to connect hard drives to a computer motherboard.

  1. Secondary Area Technology Attachment

  2. Secondary Advanced Technology Attachment

  3. Sedentary Advance Technology Attachment

  4. Serial Advanced Technology Attachment

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

SATA stands for "Serial Advanced Technology Attachment" or "Serial ATA". It is an interface used to connect ATA hard drives to a computer's motherboard. SATA transfer rates start at 150MBps, which is significantly faster than even the fastest 100MBps ATA/100 drives.

Multiple choice

Which of the following is a volatile memory?

  1. RAM

  2. EPROM

  3. ROM

  4. EEPROM

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

Volatile memory is a type of memory (storage) whose contents are erased when the system's power is turned off or interrupted. For example, RAM is a volatile memory.

Multiple choice

Which of the following is a volatile memory?

  1. RAM

  2. ROM

  3. EPROM

  4. EEPROM

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

Volatile memory is a type of memory (storage) whose contents are erased when the system's power is turned off or interrupted. For example, RAM is a volatile memory.

Multiple choice

Which content is lost when the computer turns off?

  1. Storage

  2. Input

  3. Output

  4. Memory

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

Memory (RAM) is volatile and loses its contents when the computer turns off. Storage (hard drive, SSD) retains data, Input is data entering the system, Output is results leaving the system, and None of these is incorrect.

Multiple choice

Which of the following is not a storage medium?

  1. Hard disk

  2. Flash drive

  3. DVD

  4. CD

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

A monitor is an output device that displays information visually, not a storage medium. Hard disks, flash drives, DVDs, and CDs all store data permanently or temporarily.