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 is NOT a common type of digital storage media?

  1. Hard disk drive

  2. Solid state drive

  3. Magnetic tape

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

Optical discs are not as commonly used for digital storage as they were in the past, due to their limited capacity and susceptibility to damage.

Multiple choice

What types of discs can a DVD player typically play?

  1. DVDs

  2. Blu-rays

  3. CDs

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

Most DVD players can play DVDs, CDs, and Blu-rays. However, some older models may not be able to play Blu-rays.

Multiple choice

What is the typical storage capacity of a single-layer DVD?

  1. 4.7 GB

  2. 8.5 GB

  3. 12 GB

  4. 16 GB
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The typical storage capacity of a single-layer DVD is 4.7 GB. Dual-layer DVDs can store up to 8.5 GB, and double-layer DVDs can store up to 16 GB.

Multiple choice

What are some of the factors to consider when choosing a DVD player?

  1. The type of discs you want to play

  2. The resolution and aspect ratio you want to support

  3. The features you want, such as HDMI output and component video output

  4. The price
Reveal answer Fill a bubble to check yourself
Correct answer
Explanation

When choosing a DVD player, you should consider the type of discs you want to play, the resolution and aspect ratio you want to support, the features you want, and the price.

Multiple choice

What is the purpose of the memory unit in a computer system?

  1. Performing arithmetic and logical operations

  2. Storing data and instructions

  3. Directing the flow of data and instructions

  4. Managing input and output devices
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The memory unit is responsible for storing data and instructions that are being processed by the computer system.

Multiple choice

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

  1. Random Access Memory (RAM)

  2. Read-Only Memory (ROM)

  3. Cache Memory

  4. Hard Disk Drive (HDD)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Hard Disk Drive (HDD) is a storage device, not a type of computer memory.

Multiple choice

Which of the following is not a common mastering format?

  1. Digital Cinema Package (DCP)

  2. Blu-ray

  3. DVD

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

VHS is an outdated video format, it is not commonly used for mastering films.

Multiple choice

Which type of memory card is suitable for storing 4K videos and high-resolution images?

  1. SDHC card

  2. microSDHC card

  3. SDXC card

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

SDXC cards are designed to handle large file sizes and high-resolution content, making them suitable for storing 4K videos and high-resolution images.

Multiple choice

Which type of memory card is commonly used in smartphones and tablets?

  1. SD card

  2. CompactFlash card

  3. Memory Stick

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

microSD cards are commonly used in smartphones and tablets due to their small size and ability to handle high-speed data transfer.

Multiple choice

Which of the following is NOT a memory enhancement technique?

  1. Chunking

  2. Repetition

  3. Mnemonic devices

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

Distraction is not a memory enhancement technique, as it can interfere with the encoding and retrieval of information.

Multiple choice

The capacity of working memory to temporarily store and manipulate information is referred to as:

  1. Long-Term Memory Capacity

  2. Short-Term Memory Capacity

  3. Working Memory Capacity

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

Working memory capacity is the amount of information that can be held in working memory at one time.

Multiple choice

Which of the following is a key characteristic of High-Performance Computing (HPC) systems?

  1. High memory capacity

  2. Large storage capacity

  3. High computational power

  4. High network bandwidth
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

HPC systems are designed to deliver exceptional computational performance, enabling the execution of complex and demanding scientific and engineering simulations.

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.