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 regularly backing up data to ensure its availability in case of data loss?

  1. Data Recovery

  2. Data Archiving

  3. Data Encryption

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

Data Backup refers to the process of regularly copying and storing data in a separate location to ensure its availability in case of data loss.

Multiple choice

Which of the following is NOT a recommended practice for organizing educational resources within a digital storage system?

  1. Using a consistent naming convention for files and folders.

  2. Creating subfolders to categorize resources by topic or type.

  3. Storing multiple copies of the same resource in different locations.

  4. Regularly backing up resources to prevent data loss.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Storing multiple copies of the same resource in different locations can lead to confusion, version control issues, and unnecessary duplication of data.

Multiple choice

Which of the following is NOT a recommended practice for organizing educational resources within a physical storage system?

  1. Using shelves, cabinets, or drawers to store resources.

  2. Arranging resources alphabetically or numerically for easy identification.

  3. Storing resources in a random and disorganized manner to promote creativity.

  4. Labeling shelves, cabinets, or drawers clearly to indicate the type of resources stored.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Storing resources in a random and disorganized manner hinders efficient resource management and retrieval, making it difficult to locate and utilize resources effectively.

Multiple choice

What is the purpose of a page table in virtual memory management?

  1. To translate virtual addresses to physical addresses

  2. To manage the allocation of physical memory

  3. To store the contents of pages in main memory

  4. To handle page faults and exceptions
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The purpose of a page table in virtual memory management is to translate virtual addresses used by processes into physical addresses in main memory, allowing for efficient memory management and protection.

Multiple choice

Which file system structure organizes files and directories in a hierarchical manner?

  1. Flat File System

  2. Hierarchical File System

  3. Network File System (NFS)

  4. Distributed File System (DFS)
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A Hierarchical File System organizes files and directories in a tree-like structure, where each directory can contain subdirectories and files, allowing for efficient organization and navigation.

Multiple choice

Which operating system concept allows multiple processes to share the same physical memory space?

  1. Virtual Memory

  2. Paging

  3. Segmentation

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

Virtual Memory is a technique that allows multiple processes to share the same physical memory space by creating the illusion of a larger memory space than physically available.

Multiple choice

What is the term for the temporary storage area in the CPU where data and instructions are held during processing?

  1. Cache Memory

  2. Main Memory

  3. Secondary Memory

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

Registers are the temporary storage areas in the CPU where data and instructions are held during processing, providing fast access to frequently used data and instructions.

Multiple choice

Which operating system component is responsible for managing the allocation and deallocation of memory to processes?

  1. Process Manager

  2. Memory Manager

  3. File System Manager

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

The Memory Manager is responsible for managing the allocation and deallocation of memory to processes, ensuring that each process has the necessary memory resources to execute.

Multiple choice

What is the term for the process of temporarily moving data from main memory to secondary storage to make room for other data?

  1. Paging

  2. Swapping

  3. Segmentation

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

Swapping is the process of temporarily moving data from main memory to secondary storage (such as a hard disk) to make room for other data that needs to be processed, and then moving it back to main memory when it is needed again.

Multiple choice

Which operating system component is responsible for managing the allocation and deallocation of disk space?

  1. Process Manager

  2. Memory Manager

  3. File System Manager

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

The File System Manager is responsible for managing the allocation and deallocation of disk space, organizing files and directories, and providing an interface for applications to access and manipulate files.

Multiple choice

What is the term for the process of copying data from secondary storage to main memory for processing?

  1. Paging

  2. Swapping

  3. Segmentation

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

Paging is the process of copying data from secondary storage (such as a hard disk) to main memory in small units called pages, allowing for efficient memory management and the execution of large programs.

Multiple choice

What is the term for the process of dividing memory into fixed-size blocks called segments?

  1. Paging

  2. Swapping

  3. Segmentation

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

Segmentation is the process of dividing memory into fixed-size blocks called segments, where each segment can be allocated to a different process or part of a process.

Multiple choice

Which operating system component is responsible for managing the allocation and deallocation of input/output devices?

  1. Process Manager

  2. Memory Manager

  3. File System Manager

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

The Device Manager is responsible for managing the allocation and deallocation of input/output devices, such as printers, scanners, and network cards, and providing an interface for applications to access and control these devices.

Multiple choice

What is the term for the process of temporarily storing frequently used data in a high-speed memory to improve performance?

  1. Paging

  2. Swapping

  3. Segmentation

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

Caching is the process of temporarily storing frequently used data in a high-speed memory, such as a cache memory, to improve performance by reducing the time it takes to access the data.

Multiple choice

Which grain storage technique involves stacking grains in a conical shape?

  1. Bin Storage

  2. Silo Storage

  3. Bulk Storage

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

Heap storage involves stacking grains in a conical shape, allowing for proper aeration and preventing spoilage.