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 general knowledge math & puzzles
  1. Tape Recorder

  2. Optical/Video disk.

  3. Fiber Optic

  4. DVD

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

David Paul Gregg invented the optical disc (also known as the laser disc or video disc) in the 1960s while working at Georgia Tech. His invention laid the groundwork for later optical media like CDs and DVDs. He did not invent tape recorders, fiber optics, or DVDs specifically.

Multiple choice general knowledge
  1. Code Division Memory Access

  2. Code Division Multiple Access

  3. Code Division Micro Access

  4. Code Division Macro Access

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

CDMA stands for Code Division Multiple Access, a channel access method used by various radio communication technologies. 'Multiple Access' refers to how multiple users share the same frequency band. 'Memory', 'Micro', and 'Macro' are incorrect expansions.

Multiple choice general knowledge
  1. Secure Data

  2. Small Data

  3. Small Digital

  4. Secure Digital

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

SD stands for Secure Digital, a common memory card format used in devices like cameras, phones, and other electronics. Secure Data, Small Data, and Small Digital are not the correct expansion of this acronym.

Multiple choice general knowledge
  1. 3 015 tebibyte

  2. 3 087 000 00 GB

  3. 3 315 000 000 000 Octet

  4. 25 900 000 000 mebibit

  5. 26 520 000 000 000 Kbit

  6. 23 exabit

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

Compare all values in the same unit (kilobits). A: 3015 TiB = 3015 × 8192 Gb × 1024 Mb × 1024 Kb = 25,337,820,000,000 Kb. B: 3087 GB = 3,087 × 8 Gb × 1024 Mb × 1024 Kb = 25,534,457,856 Kb. C: 3,315,000,000,000 octets = 3,315,000,000,000 × 8 bits = 26,520,000,000,000 bits. D: 25,900,000,000 Mib = 25.9 billion × 1024 Kb = 26,521,600,000,000 Kb. E: 26,520,000,000,000 Kb (this value). F: 23 Ebit = 23 × 10^18 bits = 23,000,000,000,000,000,000 bits = 23,000,000,000,000,000,000 Kb. Option F is clearly the largest by many orders of magnitude (exabits vs terabits/gigabits).

Multiple choice general knowledge science & technology
  1. True

  2. False

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

While modern USB (especially 3.0+) can handle video transfer, it's not the optimal choice for bulk data. Professional video workflows use Thunderbolt, eSATA, or internal SATA/PCIe connections which offer higher sustained bandwidth and lower overhead. USB has protocol overhead and contention issues that make it suboptimal for large, sustained transfers.

Multiple choice general knowledge science & technology
  1. True

  2. False

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

PCs can indeed have multiple optical drives. This was common in the past for purposes like disc-to-disc copying (having one reader and one burner), or for users who needed access to different types of media (CD-RW, DVD-ROM, DVD-RAM) simultaneously. Modern PCs rarely include even one optical drive, but multiple drives are still physically possible.

Multiple choice general knowledge science & technology
  1. floor address

  2. foundation address

  3. first address

  4. base address

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

To solve this question, the user needs to have knowledge of arrays and computer memory.

The memory address of the first element of an array is called the base address. This is because the base address is the starting point or foundation of the array in memory. It is the address at which the first element of the array is stored.

Therefore, the correct answer is:

The Answer is: D. base address.

Option A is incorrect because floor address is not a term used to refer to the memory address of the first element of an array.

Option B is incorrect because foundation address is not a term used to refer to the memory address of the first element of an array.

Option C is incorrect because first address is not a term used to refer to the memory address of the first element of an array.

Multiple choice general knowledge science & technology
  1. P contains the address of an element in DATA.

  2. P points to the address of first element in DATA

  3. P can store only memory addresses

  4. P contain the DATA and the address of DATA

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

In programming, a pointer is a variable whose value is the memory address of another variable. While it can store addresses, the functional definition is that it 'points' to the location of data.

Multiple choice softskills creativity
  1. Heap

  2. Kernal

  3. Stack

  4. Static Data Blocks

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

While the method code itself is stored in the Code Segment/Method Area, the execution of methods (including local variables and call frames) occurs on the Stack. However, the question is slightly ambiguous as 'stored' usually refers to the Method Area.