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 technique used to improve the performance of data access by storing frequently used data in a faster storage medium?

  1. Caching

  2. Buffering

  3. Prefetching

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

Caching is a technique used to improve data access performance by storing frequently used data in a faster storage medium, such as RAM. This allows for quicker access to commonly requested data.

Multiple choice

Which storage management technique involves dividing a large storage device into smaller, logical units?

  1. Partitioning

  2. RAID

  3. Deduplication

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

Partitioning is a storage management technique that involves dividing a large storage device into smaller, logical units called partitions. This allows for better organization and management of data.

Multiple choice

What is the process of removing duplicate copies of data from a storage system called?

  1. Deduplication

  2. Compression

  3. Replication

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

Deduplication is the process of removing duplicate copies of data from a storage system. This helps to save storage space and improve storage efficiency.

Multiple choice

Which data storage architecture involves combining multiple storage devices into a single, logical unit?

  1. RAID

  2. SAN

  3. NAS

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

RAID (Redundant Array of Independent Disks) is a data storage architecture that involves combining multiple storage devices into a single, logical unit. This provides increased data reliability and performance.

Multiple choice

What is the term used to describe the process of making multiple copies of data across different storage devices?

  1. Replication

  2. Mirroring

  3. Backup

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

Replication is the process of making multiple copies of data across different storage devices. This is done to ensure data availability and protection in case of a device failure.

Multiple choice

Which storage technology allows for the storage of data on optical discs?

  1. Magnetic Tape

  2. Optical Disc

  3. Solid-State Drive (SSD)

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

Optical Disc technology allows for the storage of data on optical discs, such as CDs, DVDs, and Blu-ray discs. These discs use laser technology to read and write data.

Multiple choice

What is the term used to describe the process of storing data in a compressed format to reduce storage space?

  1. Compression

  2. Encryption

  3. Deduplication

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

Compression is the process of storing data in a compressed format to reduce storage space. This is done by removing redundant information from the data.

Multiple choice

Which storage device is known for its high speed and low latency?

  1. Solid-State Drive (SSD)

  2. Hard Disk Drive (HDD)

  3. Magnetic Tape

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

Solid-State Drives (SSDs) are known for their high speed and low latency. They use flash memory technology to store data, which allows for faster read and write operations.

Multiple choice

What is the term used to describe the process of moving data from a primary storage device to a secondary storage device?

  1. Archiving

  2. Backup

  3. Migration

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

Archiving is the process of moving data from a primary storage device to a secondary storage device for long-term retention.

Multiple choice

Which storage technology involves storing data on magnetic tape?

  1. Magnetic Tape

  2. Optical Disc

  3. Solid-State Drive (SSD)

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

Magnetic Tape technology involves storing data on magnetic tape. Magnetic tapes are used for long-term archival storage and backup purposes.

Multiple choice

What is the term used to describe the process of copying data from a primary storage device to a secondary storage device for backup purposes?

  1. Archiving

  2. Backup

  3. Migration

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

Backup is the process of copying data from a primary storage device to a secondary storage device for backup purposes. This is done to protect data in case of a primary storage device failure.

Multiple choice

What is the term for a flashback within a flashback?

  1. Nested flashback

  2. Double flashback

  3. Recursive flashback

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

A nested flashback is a flashback that occurs within another flashback, creating a layered structure of past events.

Multiple choice

Which storage type in cloud storage is designed for storing large, immutable objects like media files and backups?

  1. Block Storage

  2. File Storage

  3. Object Storage

  4. Relational Database Storage
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Object storage is a cloud storage type optimized for storing large, immutable objects. It provides scalability, durability, and low cost.

Multiple choice

Which of the following is a type of data storage that is designed for fast retrieval of frequently accessed data?

  1. Sequential Access Storage

  2. Direct Access Storage

  3. Network Attached Storage

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

Direct Access Storage (DAS) is a type of data storage that allows data to be accessed directly from the storage device, without having to go through a network or other intermediary.

Multiple choice

What is the term used to describe the process of moving data from one storage medium to another?

  1. Data Migration

  2. Data Replication

  3. Data Backup

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

Data Migration is the process of moving data from one storage medium to another, often for the purpose of upgrading or consolidating storage systems.