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

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.

Multiple choice

What is the role of a GPU's register file?

  1. To store frequently used data

  2. To reduce memory latency

  3. To improve performance for arithmetic and logical operations

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

GPU's register file stores frequently used data, reduces memory latency, and improves performance for arithmetic and logical operations.

Multiple choice

What is the purpose of a GPU's instruction cache?

  1. To store frequently executed instructions

  2. To reduce memory latency

  3. To improve performance for control flow instructions

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

GPU's instruction cache stores frequently executed instructions, reduces memory latency, and improves performance for control flow instructions.

Multiple choice

What is the role of a GPU's data cache?

  1. To store frequently accessed data

  2. To reduce memory latency

  3. To improve performance for data-intensive applications

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

GPU's data cache stores frequently accessed data, reduces memory latency, and improves performance for data-intensive applications.

Multiple choice

Which type of mirroring technique involves creating a mirror copy of the data on a separate storage device within the same system?

  1. Local Mirroring

  2. Remote Mirroring

  3. Asynchronous Mirroring

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

Local mirroring involves creating a mirror copy of the data on a separate storage device that is physically located within the same system. This provides fast access to the mirrored data in case of a failure of the primary storage device.

Multiple choice

What is the primary disadvantage of using logical replication over physical replication?

  1. Increased network traffic

  2. Slower write operations

  3. Complex data management

  4. Higher storage requirements
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Logical replication can lead to increased network traffic because the changes to the data are replicated as a series of operations. This can be a concern for applications that require high-speed data replication.

Multiple choice

Which type of GPU memory is known for its high bandwidth and low latency?

  1. GDDR6

  2. HBM2

  3. SRAM

  4. DDR5
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

HBM2 (High Bandwidth Memory 2) is a type of GPU memory that offers significantly higher bandwidth and lower latency compared to traditional GDDR memory.