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 term used to describe the ability of a cloud storage system to ensure that data is written to the system in the same order in which it was received?

  1. Data Ordering

  2. Data Consistency

  3. Data Durability

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

Data ordering is the ability of a cloud storage system to ensure that data is written to the system in the same order in which it was received. This is important for applications that require data to be processed in a specific order.

Multiple choice

Which of the following is a type of cloud storage that is designed for storing block-based data?

  1. Block Storage

  2. Object Storage

  3. File Storage

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

Block storage is a type of cloud storage that is designed for storing block-based data. This type of storage is typically used for storing operating systems and applications.

Multiple choice

What is the term used to describe the ability of a cloud storage system to ensure that data is not lost or corrupted even in the event of a hardware failure?

  1. Data Durability

  2. Data Consistency

  3. Data Integrity

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

Data durability is the ability of a cloud storage system to ensure that data is not lost or corrupted even in the event of a hardware failure. This is typically achieved through the use of redundant storage and error-correction codes.

Multiple choice

Which of the following is a type of cloud storage that is designed for storing large amounts of data that is frequently accessed?

  1. Block Storage

  2. Object Storage

  3. File Storage

  4. In-Memory Storage
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

In-memory storage is a type of cloud storage that is designed for storing large amounts of data that is frequently accessed. This type of storage is typically much faster than other types of cloud storage, but it is also more expensive.

Multiple choice

What is the maximum amount of data that can be recovered using Cloud Storage Data Recovery?

  1. 10 GB

  2. 100 GB

  3. 1 TB

  4. 10 TB
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cloud Storage Data Recovery can be used to recover up to 10 TB of data.

Multiple choice

How long does it take to recover data using Cloud Storage Data Recovery?

  1. A few minutes

  2. A few hours

  3. A few days

  4. A few weeks
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The time it takes to recover data using Cloud Storage Data Recovery depends on the amount of data being recovered and the speed of the internet connection. However, in most cases, data can be recovered within a few hours.

Multiple choice

What is the recommended frequency for testing your Cloud Storage Data Recovery setup?

  1. Monthly

  2. Quarterly

  3. Annually

  4. Never
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The recommended frequency for testing your Cloud Storage Data Recovery setup is monthly. This will help you to ensure that your setup is working properly and that you are able to recover data in the event of a disaster.

Multiple choice

What are the limitations of Cloud Storage Data Recovery?

  1. It can only be used to recover data from Cloud Storage buckets.

  2. It can only be used to recover data that has been accidentally deleted or overwritten.

  3. It can only be used to recover data that is less than 10 TB in size.

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

Cloud Storage Data Recovery has the following limitations:

  • It can only be used to recover data from Cloud Storage buckets.
  • It can only be used to recover data that has been accidentally deleted or overwritten.
  • It can only be used to recover data that is less than 10 TB in size.
Multiple choice

Which of the following is a common data deduplication technique?

  1. Hashing

  2. Encryption

  3. Compression

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

Hashing is a widely used data deduplication technique that involves creating a unique fingerprint for each data block. Duplicate blocks can be identified by comparing their hashes.

Multiple choice

Which of the following is NOT a type of cloud storage?

  1. Object Storage

  2. Block Storage

  3. File Storage

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

Relational Database Storage is not a type of cloud storage. It is a type of database storage that is used to store data in a structured format.

Multiple choice

Which of the following is NOT a trend in cloud storage?

  1. The rise of object storage

  2. The decline of block storage

  3. The increasing use of cloud storage for backup and recovery

  4. The decreasing use of cloud storage for primary storage
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cloud storage is increasingly being used for primary storage, not decreasing.

Multiple choice

Which of the following is NOT a common type of data backup?

  1. Full backup

  2. Incremental backup

  3. Differential backup

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

Log backup is a type of data backup that is specific to databases. It captures changes made to the database since the last backup, rather than backing up the entire database.

Multiple choice

Which of the following is NOT a common data backup storage medium?

  1. Hard disk drives (HDDs)

  2. Solid state drives (SSDs)

  3. Magnetic tape

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

Magnetic tape is a legacy data backup storage medium that is rarely used today. It is slow, unreliable, and has a limited capacity.

Multiple choice

What is the 3-2-1 backup rule?

  1. Keep three copies of your data, two on different media, and one offsite.

  2. Keep two copies of your data, one on a primary storage device and one on a backup device.

  3. Keep one copy of your data on a primary storage device and two copies on backup devices.

  4. Keep three copies of your data, one on a primary storage device, one on a backup device, and one in the cloud.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The 3-2-1 backup rule is a best practice for data backup that recommends keeping three copies of your data, two on different media, and one offsite. This ensures that you have multiple copies of your data in case of data loss or corruption, and that at least one copy is stored in a safe location away from the primary storage location.

Multiple choice

Which of the following is NOT a common backup storage location?

  1. Local storage (e.g., hard disk drives or solid state drives)

  2. Network-attached storage (NAS)

  3. Cloud storage

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

Tape storage is a legacy backup storage location that is rarely used today. It is slow, unreliable, and has a limited capacity.