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 type of memory is typically preferred for GPUs used in cryptocurrency mining?

  1. GDDR3

  2. GDDR4

  3. GDDR5

  4. GDDR6
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

GDDR6 memory is the latest generation of graphics memory, offering higher bandwidth and lower power consumption compared to previous generations, making it the preferred choice for GPUs used in cryptocurrency mining.

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.

Multiple choice

What are the different types of file systems?

  1. Hierarchical file systems, flat file systems, and network file systems.

  2. FAT, NTFS, and ext4.

  3. Local file systems and remote file systems.

  4. Public file systems and private file systems.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

There are three main types of file systems: hierarchical file systems, flat file systems, and network file systems. Hierarchical file systems are the most common type of file system. They organize files and directories in a tree-like structure. Flat file systems store all files in a single directory. Network file systems allow users to access files that are stored on other computers over a network.

Multiple choice

Which of the following is NOT a type of storage class in Cloud Storage?

  1. Standard

  2. Coldline

  3. Nearline

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

Archive is not a type of storage class in Cloud Storage. The available storage classes are Standard, Coldline, and Nearline.

Multiple choice

What is the maximum size of an object that can be stored in Cloud Storage?

  1. 5 TB

  2. 10 TB

  3. 25 TB

  4. 50 TB
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The maximum size of an object that can be stored in Cloud Storage is 5 TB.

Multiple choice

Which of the following is NOT a supported storage location in Cloud Storage?

  1. US

  2. EU

  3. Asia

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

Cloud Storage does not offer storage locations in Antarctica.

Multiple choice

What is the process of moving data from Cloud Storage to another storage location called?

  1. Data transfer

  2. Data migration

  3. Data replication

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

The process of moving data from Cloud Storage to another storage location is called data transfer.

Multiple choice

What is the maximum number of lifecycle rules that can be applied to an object in Cloud Storage?

  1. 1

  2. 5

  3. 10

  4. 20
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The maximum number of lifecycle rules that can be applied to an object in Cloud Storage is 10.

Multiple choice

Which memory type is typically used for storing data that is frequently accessed by the GPU?

  1. Global Memory

  2. Shared Memory

  3. Local Memory

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

Shared memory is a type of GPU memory that is shared among threads within a thread block, providing fast access to frequently used data.