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

When you are working on a document on a PC, where is the document temporarily stored?

  1. RAM

  2. ROM

  3. The CPU

  4. Flash memory

  5. The CD-ROM
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

RAM (Random Access Memory) is volatile memory used for temporary storage while you're actively working on files. When you open or edit a document, it's loaded into RAM for fast access. ROM is read-only permanent memory, CPU processes data, flash memory is for storage, and CD-ROM is optical media. Only RAM provides the fast, temporary workspace needed for active document editing.

Multiple choice

Which of the following refers to the memory in your computer?

  1. RAM

  2. DSL

  3. USB

  4. LAN

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

RAM (Random Access Memory) is your computer's primary working memory. DSL is an internet connection type, USB is a connection interface/port type, LAN is a network type, and CPU is the processor. Only RAM refers to actual memory hardware that stores data temporarily for active use.

Multiple choice

Magnetic tape is not practical for applications where data must be quickly recalled because tape is

  1. A random-access medium

  2. A sequential-access medium

  3. A read-only medium

  4. Fragile and easily damaged

  5. An expensive storage medium
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Magnetic tape is a sequential-access medium, meaning you must fast-forward or rewind through all preceding data to reach specific information. This makes it impractical for applications requiring quick random access to specific data. It is not random-access, read-only, particularly fragile, or necessarily expensive.

Multiple choice

When cutting and pasting, the item cut is temporarily stored in

  1. ROM

  2. Hard drive

  3. Diskette

  4. Dashboard

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

When you cut or copy text/images, Windows stores them temporarily in the Clipboard, a reserved memory location. This allows you to paste the content elsewhere. The Clipboard holds only one item at a time unless enhanced.

Multiple choice

RAM is a ____________.

  1. storage device

  2. software

  3. memory

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

RAM (Random Access Memory) is primary memory - it stores data and programs currently in use for fast access by the CPU. While it's hardware component physically, its function is memory. Storage devices (hard drives, SSDs) provide persistent secondary storage.

Multiple choice

Collection of tracks on a disk forms __________.

  1. sector

  2. spindle

  3. cylinder

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

A cylinder consists of the set of all tracks of the same radius located on different surfaces of stacked disk platters in a hard disk drive.

Multiple choice

CD ROMs are

  1. magnetic storage devices

  2. optical storage devices

  3. primary storage devices

  4. none of these
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

 CD-rROMS are OPTICAL DISK and are also referred as the optical storage device.

Multiple choice

Floppy disks are

  1. storage devices

  2. random access memories

  3. used for transferring data

  4. all of the above
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Floppy disks are storage devices used for data storage and transfer. They are not random access memory (RAM) - they are secondary storage. While they can transfer data, their primary classification is as storage media.

Multiple choice

Collection of sector forms a

  1. cylinder

  2. track

  3. disk

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

A disk consists of multiple concentric tracks, and each track contains multiple sectors. The collection of sectors forms the complete disk structure. Cylinders are formed by tracks across multiple platters, not sectors.

Multiple choice

In which of the following redundant arrays of independent disks level, the single parity disk is a bottle-neck for writing, since every write requires updating the parity data?

  1. Registration

  2. Redundant arrays of independent level 3

  3. Redundant arrays of independent disks level 0

  4. Redundant arrays of independent disk level 1

  5. Two-very-safe
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

In this redundant arrays of independent disks level, the single parity disk is a bottle-neck for writting, since every write requires updating the parity data.