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 storage device is commonly used for storing data that needs to be accessed very quickly?

  1. Hard Disk Drive

  2. Solid State Drive

  3. RAM

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

RAM (Random Access Memory) is used for storing data that needs to be accessed very quickly due to its extremely fast access speeds.

Multiple choice

Which of the following is NOT a common IaaS Backup Storage Type?

  1. Local Storage

  2. Network Attached Storage (NAS)

  3. Object Storage

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

Tape Storage is not commonly used as a backup storage type in IaaS environments due to its slow access speed and limited scalability.

Multiple choice

Which theory of memory proposes that memories are stored in the brain as holograms?

  1. The engram theory

  2. The holographic memory theory

  3. The distributed memory theory

  4. The state-dependent memory theory
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The holographic memory theory is a theory of memory that proposes that memories are stored in the brain as holograms. This theory was first proposed by Karl Pribram in 1969.

Multiple choice

Which of the following is NOT a type of analog recording medium?

  1. Magnetic tape

  2. Vinyl records

  3. Compact discs

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

Compact discs are a digital recording medium, while magnetic tape, vinyl records, and cassette tapes are all analog recording media.

Multiple choice

What was the first commercially successful digital audio recording format?

  1. Compact cassette

  2. Compact disc

  3. Digital audio tape

  4. MiniDisc
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The compact disc was the first commercially successful digital audio recording format, introduced in 1982.

Multiple choice

Key-Value Stores are typically implemented using:

  1. In-memory storage

  2. Disk-based storage

  3. Hybrid storage (in-memory and disk-based)

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

Key-Value Stores often employ a hybrid storage approach, combining in-memory storage for fast access and disk-based storage for large data volumes.

Multiple choice

What are some best practices for managing and preserving digital records?

  1. Regularly backing up digital records

  2. Storing digital records in a secure and reliable location

  3. Using appropriate metadata to organize and describe digital records

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

Best practices for managing and preserving digital records include regularly backing up digital records, storing digital records in a secure and reliable location, and using appropriate metadata to organize and describe digital records.

Multiple choice

Which of the following is an example of a lossy digital format?

  1. JPEG

  2. PNG

  3. MP3

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

JPEG (Joint Photographic Experts Group) is an example of a lossy digital format. It uses a compression algorithm that discards some data to achieve a smaller file size, resulting in a slight loss of image quality.

Multiple choice

Which of the following is an example of a common file system?

  1. FAT32

  2. NTFS

  3. EXT4

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

FAT32 is an example of a common file system. It is a widely used file system for storing data on various storage devices, such as hard drives, USB flash drives, and memory cards.

Multiple choice

What was the name of BlackBerry's cloud storage service?

  1. BlackBerry Cloud

  2. BlackBerry Drive

  3. BlackBerry Link

  4. BlackBerry Hub
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

BlackBerry Cloud was the cloud storage service offered by BlackBerry, providing users with secure storage and syncing capabilities.

Multiple choice

What was the name of Microsoft's cloud storage service for Windows Phone?

  1. OneDrive

  2. Google Drive

  3. Dropbox

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

OneDrive was Microsoft's cloud storage service for Windows Phone, allowing users to store and access their files from anywhere.

Multiple choice

What is the purpose of a GPU's memory hierarchy?

  1. To store data and instructions for the GPU

  2. To provide fast access to frequently used data

  3. To reduce memory latency

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

The GPU's memory hierarchy is designed to store data and instructions for the GPU, provide fast access to frequently used data, and reduce memory latency.

Multiple choice

Which type of memory is typically used in GPUs?

  1. GDDR5

  2. GDDR6

  3. HBM2

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

GDDR5, GDDR6, and HBM2 are all types of memory commonly used in GPUs.

Multiple choice

What is the purpose of a GPU's shared memory?

  1. To store data shared by threads in a warp

  2. To reduce memory latency

  3. To improve communication between threads

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

GPU's shared memory stores data shared by threads in a warp, reduces memory latency, and improves communication between threads.

Multiple choice

What is the role of a GPU's constant memory?

  1. To store data that is read-only

  2. To reduce memory bandwidth usage

  3. To improve performance for frequently accessed data

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

GPU's constant memory stores data that is read-only, reduces memory bandwidth usage, and improves performance for frequently accessed data.