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

Which of the following is a common application of linear codes?

  1. Error correction in computer memory

  2. Error correction in data storage devices

  3. Error correction in optical communications

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Linear codes are used in various applications, including error correction in computer memory, error correction in data storage devices, and error correction in optical communications.

Multiple choice

Which of the following is a common application of cyclic codes?

  1. Error correction in data transmission

  2. Error correction in computer memory

  3. Error correction in data storage devices

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cyclic codes are used in various applications, including error correction in data transmission, error correction in computer memory, and error correction in data storage devices.

Multiple choice

Which of the following is a common application of coding theory in coding for distributed storage?

  1. Error correction in data storage

  2. Data replication

  3. Data erasure coding

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Coding theory is used in various applications in coding for distributed storage, including error correction in data storage, data replication, and data erasure coding.

Multiple choice

Which of the following is not a modern film preservation technique?

  1. Digital restoration

  2. Photochemical restoration

  3. Magnetic tape storage

  4. Optical disc storage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Magnetic tape storage is an older technology that is no longer used for film preservation, as it is less reliable and durable than digital and optical disc storage.

Multiple choice

What type of optical disc format does a Blu-ray player use?

  1. DVD

  2. CD

  3. Blu-ray

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

Blu-ray players use Blu-ray discs, which have a higher storage capacity and can hold more data than DVDs or CDs.

Multiple choice

What is the region coding system used for Blu-ray discs?

  1. A, B, C

  2. 1, 2, 3

  3. I, II, III

  4. None of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blu-ray discs are region coded, meaning that they can only be played on Blu-ray players that are compatible with the region code of the disc.

Multiple choice

What is the latest version of the Blu-ray disc format?

  1. Blu-ray 2.0

  2. Blu-ray 3.0

  3. Blu-ray 4.0

  4. Blu-ray 5.0
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The latest version of the Blu-ray disc format is Blu-ray 4.0, which includes features such as 4K resolution, high dynamic range (HDR), and expanded color gamut.

Multiple choice

Which Blu-ray player feature allows users to play content from external storage devices?

  1. USB port

  2. SD card slot

  3. HDMI input

  4. Optical audio output
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Many Blu-ray players have USB ports that allow users to connect external storage devices, such as USB drives or hard drives, and play content stored on them.

Multiple choice

What is the process of transferring information from short-term memory to long-term memory called?

  1. Encoding

  2. Storage

  3. Retrieval

  4. Consolidation
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Consolidation is the process by which memories are strengthened and stored in long-term memory.

Multiple choice

Which of the following is NOT a stage of the memory process?

  1. Encoding

  2. Storage

  3. Retrieval

  4. Forgetting
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Forgetting is not a stage of the memory process, but rather a result of the natural decay of memories over time or interference from other memories.

Multiple choice

Which of the following is NOT a type of memory retrieval?

  1. Recall

  2. Recognition

  3. Recollection

  4. Priming
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Priming is a type of implicit memory that involves the activation of associations between stimuli, rather than the conscious retrieval of information.

Multiple choice

According to the Multi-Store Model of memory, what is the name of the temporary storage system that holds information for a brief period of time?

  1. Long-Term Memory

  2. Working Memory

  3. Sensory Memory

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

Sensory Memory is the temporary storage system in the Multi-Store Model that holds sensory information for a very brief period of time, typically less than a second.

Multiple choice

What is the recommended storage device for HDR photography?

  1. SD card

  2. CF card

  3. XQD card

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

XQD cards are recommended for HDR photography due to their high speed and capacity.

Multiple choice

Which of the following is not a good way to store digital files?

  1. On a hard drive

  2. On a flash drive

  3. On a CD or DVD

  4. On a piece of paper
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Storing digital files on a piece of paper is not a good way to store them because the data can be easily lost or damaged.

Multiple choice

Which invention made it possible to store and retrieve large amounts of data?

  1. Hard disk drive

  2. Solid-state drive

  3. Magnetic tape

  4. Optical disc
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The hard disk drive, invented in the 1950s, revolutionized data storage by providing high-capacity and reliable storage for computers.