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 process of periodically refreshing the memory cells in DRAM to prevent data loss?

  1. Write leveling

  2. Wear leveling

  3. Memory scrubbing

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

DRAM requires periodic refreshing of its memory cells to prevent data loss. This process is known as the refresh cycle.

Multiple choice

Which type of solid state memory is known for its ability to be erased and reprogrammed multiple times?

  1. DRAM

  2. SRAM

  3. EEPROM

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

EEPROM (Electrically Erasable Programmable Read-Only Memory) allows for multiple erasing and reprogramming cycles, making it suitable for applications where data needs to be updated frequently.

Multiple choice

Which type of solid state memory is commonly used in graphics cards and high-performance computing systems?

  1. DRAM

  2. SRAM

  3. EEPROM

  4. HBM (High Bandwidth Memory)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

HBM (High Bandwidth Memory) is a type of solid state memory designed for high-performance computing systems and graphics cards, offering extremely high bandwidth and data transfer rates.

Multiple choice

What is the term used to describe the process of combining multiple memory chips into a single module to increase memory capacity?

  1. Memory interleaving

  2. Memory striping

  3. Memory mirroring

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

Memory stacking involves combining multiple memory chips vertically to increase memory capacity while maintaining a compact form factor.

Multiple choice

Which type of solid state memory is known for its low power consumption and ability to retain data even when power is turned off?

  1. DRAM

  2. SRAM

  3. EEPROM

  4. MRAM (Magnetic Random Access Memory)
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

MRAM (Magnetic Random Access Memory) is a type of solid state memory that utilizes magnetic fields to store data, resulting in low power consumption and non-volatile data retention.

Multiple choice

Which of these is a common type of storage device used for storing large amounts of video footage in NLE workflows?

  1. Hard disk drive (HDD)

  2. Solid-state drive (SSD)

  3. Network-attached storage (NAS)

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

Hard disk drives (HDDs), solid-state drives (SSDs), and network-attached storage (NAS) devices are all commonly used for storing large amounts of video footage in NLE workflows. HDDs offer large storage capacities at a relatively low cost, SSDs provide faster read/write speeds, and NAS devices allow for centralized storage and sharing of media files over a network.

Multiple choice

Short-term memory is a type of memory that:

  1. Stores information for a few seconds or minutes

  2. Stores information for a few hours or days

  3. Stores information for a few weeks or months

  4. Stores information for a few years or decades
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Short-term memory is a type of memory that stores information for a few seconds or minutes.

Multiple choice

Long-term memory is a type of memory that:

  1. Stores information for a few seconds or minutes

  2. Stores information for a few hours or days

  3. Stores information for a few weeks or months

  4. Stores information for a few years or decades
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Long-term memory is a type of memory that stores information for a few years or decades.

Multiple choice

Working memory is a type of memory that:

  1. Stores information for a few seconds or minutes

  2. Stores information for a few hours or days

  3. Stores information for a few weeks or months

  4. Stores information for a few years or decades
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Working memory is a type of memory that stores information for a few seconds or minutes.

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 USB flash drive

  4. On a cloud storage service
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Cloud storage services are the best way to store digital photographs because they are secure, reliable, and accessible from anywhere.

Multiple choice

What is the process of retrieving 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 retrieving information from memory.

Multiple choice

What is the process of transferring information from short-term memory to long-term memory called?

  1. Encoding

  2. Storage

  3. Retrieval

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

Consolidation is the process of transferring information from short-term memory to long-term memory.

Multiple choice

Which of the following is NOT a common human error that can damage digital objects?

  1. Accidental deletion

  2. Overwriting files

  3. Virus infection

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

Virus infection is not a common human error that can damage digital objects. Accidental deletion, overwriting files, and improper storage are all common human errors that can cause damage.

Multiple choice

What is the term used to describe the process of transferring digital objects from one storage medium to another?

  1. Data migration

  2. Data transfer

  3. Data conversion

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

Data migration is the process of transferring digital objects from one storage medium to another. Data transfer and data conversion are often used interchangeably with data migration, while data preservation refers to the long-term storage and maintenance of digital objects.

Multiple choice

What is the best way to store digital photographs to preserve them?

  1. On a hard drive

  2. On a CD or DVD

  3. On a USB flash drive

  4. On a cloud storage service
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Storing digital photographs on a cloud storage service is the best way to preserve them, as it provides redundancy and protection against data loss.