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

Which of these is NOT a common type of mobile device storage?

  1. Internal storage

  2. Removable storage

  3. Cloud storage

  4. Solid-state drive
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Solid-state drives are not a common type of mobile device storage, as they are more expensive and less durable than other types of storage.

Multiple choice

What is the maximum storage capacity for music on the latest Apple Watch?

  1. 8GB

  2. 16GB

  3. 32GB

  4. 64GB
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The latest Apple Watch offers 32GB of storage capacity for music.

Multiple choice

What is the process of retrieving information from memory called?

  1. Recall

  2. Recognition

  3. Relearning

  4. Encoding

  5. Storage
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Recall is the process of retrieving information from memory.

Multiple choice

What is the process of maintaining information in memory over time called?

  1. Recall

  2. Recognition

  3. Relearning

  4. Encoding

  5. Storage
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Storage is the process of maintaining information in memory over time.

Multiple choice

What is the purpose of an instruction register in a microprocessor?

  1. Storing the current instruction being executed

  2. Holding the result of an arithmetic or logical operation

  3. Fetching the next instruction from memory

  4. Translating high-level language instructions into machine code
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The instruction register temporarily stores the instruction that is currently being executed by the microprocessor.

Multiple choice

Which addressing mode allows a program to access data at a specific memory location?

  1. Immediate addressing

  2. Direct addressing

  3. Indirect addressing

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

Direct addressing mode specifies the memory address of the operand directly in the instruction.

Multiple choice

What is the role of a program counter in a microprocessor?

  1. Storing the address of the next instruction to be executed

  2. Holding the result of a comparison operation

  3. Fetching data from memory

  4. Performing arithmetic calculations
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The program counter holds the address of the next instruction to be executed by the microprocessor.

Multiple choice

Which of the following is a common type of memory used in embedded systems?

  1. Dynamic random-access memory (DRAM)

  2. Static random-access memory (SRAM)

  3. Read-only memory (ROM)

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

Flash memory is a non-volatile memory that can be erased and reprogrammed, making it suitable for embedded systems where data needs to be stored permanently.

Multiple choice

What is the function of a stack in a microprocessor system?

  1. Storing temporary data during program execution

  2. Holding the return addresses for subroutine calls

  3. Managing the flow of data between registers and memory

  4. Performing arithmetic and logical operations
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The stack is a memory area used to store temporary data during program execution, such as function arguments, local variables, and return addresses.

Multiple choice

Which of the following is NOT a common type of mobile device storage?

  1. Internal storage

  2. External storage

  3. Cloud storage

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

Optical storage is not common in mobile devices.

Multiple choice

What is the primary application of nanotechnology in memory devices?

  1. Increased storage capacity

  2. Reduced power consumption

  3. Enhanced data transfer rates

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

Nanotechnology enables the development of high-density memory devices by utilizing nanoscale structures to store more information in a smaller space.

Multiple choice

Which preservation strategy involves regularly transferring digital data to new storage media?

  1. Data Migration.

  2. Data Replication.

  3. Data Encryption.

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

Data Migration is a preservation strategy that involves periodically transferring digital data from one storage medium to another to ensure its long-term accessibility and integrity.

Multiple choice

Which type of storage device is commonly used for long-term storage of large amounts of data?

  1. RAM

  2. ROM

  3. Hard Disk Drive

  4. Solid State Drive
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hard Disk Drives (HDDs) are commonly used for long-term storage due to their high storage capacity and relatively low cost.

Multiple choice

What is the primary difference between HDDs and SSDs?

  1. HDDs use magnetic disks, while SSDs use flash memory.

  2. HDDs are faster than SSDs.

  3. HDDs are more durable than SSDs.

  4. HDDs have higher storage capacity than SSDs.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The primary difference between HDDs and SSDs lies in the technology they use. HDDs employ magnetic disks, while SSDs utilize flash memory.

Multiple choice

Which storage device is typically used for temporary storage of data that is being processed?

  1. Hard Disk Drive

  2. Solid State Drive

  3. RAM

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

RAM (Random Access Memory) is used for temporary storage of data that is being processed by the computer.