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 GPU memory is commonly used in budget-friendly graphics cards?

  1. GDDR6

  2. HBM2

  3. DDR4

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

DDR4 (Double Data Rate 4) is a type of memory that is often used in budget-friendly graphics cards, offering a balance of performance and cost.

Multiple choice

Which type of GPU memory is known for its low power consumption and is often used in laptops and ultrabooks?

  1. GDDR6

  2. HBM2

  3. LPDDR4X

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

LPDDR4X (Low Power Double Data Rate 4X) is a type of memory that is designed for low power consumption and is commonly found in laptops and ultrabooks.

Multiple choice

Which of the following is a key component of both DLM and ILM?

  1. Data Retention Policies

  2. Data Storage Strategies

  3. Data Backup and Recovery Plans

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

Data Retention Policies are a key component of both DLM and ILM, as they define the rules for how long data and information should be retained before being destroyed.

Multiple choice

Which of the following is NOT a common data storage strategy used in DLM and ILM?

  1. Primary Storage

  2. Secondary Storage

  3. Tertiary Storage

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

Tertiary Storage is not a common data storage strategy used in DLM and ILM. It refers to long-term, offline storage that is typically used for archival purposes.

Multiple choice

What is the process of organizing and storing information in memory called?

  1. Encoding

  2. Storage

  3. Retrieval

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

Encoding is the process of organizing and storing information in memory.

Multiple choice

What is the process of accessing and using information from memory called?

  1. Encoding

  2. Storage

  3. Retrieval

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

Retrieval is the process of accessing and using information from memory.

Multiple choice

What is the process of forgetting information from memory called?

  1. Encoding

  2. Storage

  3. Retrieval

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

Forgetting is the process of forgetting information from memory.

Multiple choice

What is the function of short-term memory?

  1. To store information that is currently being processed

  2. To store information that is needed for immediate use

  3. To store information that is important

  4. To store information that is interesting
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The function of short-term memory is to store information that is currently being processed or that is needed for immediate use. This information is typically forgotten within a few seconds if it is not rehearsed or attended to.

Multiple choice

What is the primary advantage of object storage over traditional file storage?

  1. Scalability

  2. Durability

  3. Cost-effectiveness

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

Object storage is highly scalable, allowing for the storage of massive amounts of data without performance degradation.

Multiple choice

Which object storage technology is designed for storing small, frequently accessed data objects?

  1. Hadoop Distributed File System (HDFS)

  2. Cassandra

  3. MongoDB

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

Redis is an in-memory data structure store that is designed for storing small, frequently accessed data objects.

Multiple choice

What is the term used for the process of synchronizing data between two or more storage systems?

  1. Data replication

  2. Data migration

  3. Data synchronization

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

Data synchronization involves keeping data consistent across multiple storage systems.

Multiple choice

Which object storage technology is designed for storing large, append-only data sets?

  1. Hadoop Distributed File System (HDFS)

  2. Cassandra

  3. MongoDB

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

Cassandra is a distributed database designed for storing large, append-only data sets.

Multiple choice

What is the default file system used by Ubuntu Touch?

  1. ext4

  2. btrfs

  3. ZFS

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

Ubuntu Touch primarily utilizes the ext4 file system, known for its stability, performance, and wide support.

Multiple choice

Which of the following is a distributed file system used in Hadoop?

  1. HDFS

  2. NFS

  3. FAT32

  4. ext4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

HDFS (Hadoop Distributed File System) is a distributed file system used in Hadoop for storing large amounts of data.

Multiple choice

What is the purpose of a DataNode in HDFS?

  1. Stores data blocks

  2. Manages file system metadata

  3. Performs data processing

  4. Handles client requests
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

DataNodes in HDFS are responsible for storing data blocks.