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 is the main difference between a Von Neumann architecture and a Harvard architecture?

  1. Von Neumann architectures have a single memory space for both instructions and data, while Harvard architectures have separate memory spaces for instructions and data.

  2. Von Neumann architectures use a single bus for both instructions and data, while Harvard architectures use separate buses for instructions and data.

  3. Von Neumann architectures have a single processor, while Harvard architectures have multiple processors.

  4. Von Neumann architectures are more efficient than Harvard architectures.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The main difference between a Von Neumann architecture and a Harvard architecture is that Von Neumann architectures have a single memory space for both instructions and data, while Harvard architectures have separate memory spaces for instructions and data.

Multiple choice

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

  1. To improve the performance of the computer system.

  2. To reduce the cost of the computer system.

  3. To make the computer system more reliable.

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

The purpose of the memory hierarchy in a computer system is to improve the performance of the computer system, reduce the cost of the computer system, and make the computer system more reliable.

Multiple choice

Which of the following is NOT a level of the memory hierarchy?

  1. Cache memory

  2. Main memory

  3. Secondary memory

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

Registers are not a level of the memory hierarchy. They are a type of memory that is located on the processor chip.

Multiple choice

What is the best way to store digital photographs?

  1. On a hard drive

  2. On a CD or DVD

  3. On a flash drive

  4. In the cloud
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Storing digital photographs in the cloud is the best way to protect them from damage or loss. The cloud provides a secure and reliable way to store your photographs and allows you to access them from anywhere.

Multiple choice

What is the best way to store digital negatives?

  1. On a hard drive

  2. On a CD or DVD

  3. On a flash drive

  4. In the cloud
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Storing digital negatives in the cloud is the best way to protect them from damage or loss. The cloud provides a secure and reliable way to store your negatives and allows you to access them from anywhere.

Multiple choice

What is the recommended frequency for backing up data?

  1. Daily

  2. Weekly

  3. Monthly

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

It is recommended to back up data daily to ensure that you have a recent copy of your data in case of data loss or a cyberattack.

Multiple choice

What is the typical storage capacity of a streaming media player?

  1. 8GB

  2. 16GB

  3. 32GB

  4. 64GB
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Most streaming media players have a storage capacity of 8GB, which is sufficient for storing apps and a limited amount of downloaded content.

Multiple choice

What is the purpose of a computer's random access memory (RAM)?

  1. To store data and instructions that are currently being processed by the CPU

  2. To store data that is not currently being processed by the CPU

  3. To connect to the internet

  4. To display information on a screen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

RAM (random access memory) is a type of computer memory that stores data and instructions that are currently being processed by the CPU. It is volatile memory, meaning that the data stored in RAM is lost when the computer is turned off.

Multiple choice

What is the purpose of a computer's hard disk drive (HDD)?

  1. To store data that is not currently being processed by the CPU

  2. To store data and instructions that are currently being processed by the CPU

  3. To connect to the internet

  4. To display information on a screen
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A hard disk drive (HDD) is a type of computer storage device that stores data that is not currently being processed by the CPU. It is non-volatile memory, meaning that the data stored on an HDD is retained even when the computer is turned off.

Multiple choice

What is the function of memory?

  1. To store data and instructions

  2. To perform calculations and logical operations

  3. To control the flow of data and instructions

  4. To communicate with other computers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Memory is used to store data and instructions that are being processed by the computer.

Multiple choice

What is the function of storage?

  1. To store data and instructions

  2. To perform calculations and logical operations

  3. To control the flow of data and instructions

  4. To communicate with other computers
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Storage is used to store data and instructions that are not currently being processed by the computer.

Multiple choice

Which of the following is a best practice for secure data disposal?

  1. Delete files from the recycle bin

  2. Format storage devices

  3. Physically destroy storage devices

  4. Overwrite data with random characters
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Physically destroying storage devices is the most secure way to dispose of data, as it ensures that the data cannot be recovered.

Multiple choice

Which storage medium is commonly used for storing dance videography footage?

  1. Hard disk drive

  2. Solid-state drive

  3. Memory card

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

Solid-state drives (SSDs) are often preferred for storing dance videography footage due to their fast read and write speeds, ensuring smooth playback and editing.

Multiple choice

What is the term for a temporary storage area in memory where frequently accessed data is stored to improve query performance?

  1. Cache

  2. Buffer

  3. Pool

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

A buffer is a temporary storage area in memory where frequently accessed data is stored to improve query performance. It acts as a bridge between the main memory and the disk, reducing the number of disk accesses and speeding up data retrieval.

Multiple choice

Which of the following is the best way to back up your photos?

  1. Cloud storage

  2. External hard drive

  3. USB flash drive

  4. CD or DVD
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Cloud storage is the best way to back up your photos because it is secure and allows you to access your photos from anywhere.