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

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 can be easily damaged

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

Magnetic tape stores data sequentially, meaning the drive must read through all preceding data to reach a specific point. This makes it unsuitable for applications requiring fast, random access to data.

Multiple choice

In the context of ATM, a PIN is

  1. post index number, which is a randomly generated sequence of digits

  2. a randomly generated sequence of digits, which is stored in the magnetic strip of a card

  3. post index number<font size="2">, which is</font> stored in the magnetic strip of a card

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

In the context of an ATM, a personal identification number (PIN) is a numeric password used to authenticate a user to a system, particularly in association with an ATM card.

Multiple choice

Find the valid statement.

  1. Pages that are shared between two or more processes can never be swapped out to the disk.

  2. The allocated portions of memory using a buddy system are all the same size.

  3. Demand paging requires the programmer to take specific action to force the operating system to load a particular virtual memory page.

  4. Prepaging is one possibility for the fetch policy in a virtual memory system.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

null

Multiple choice

Find incorrect statement about FAT-32 compared to VFAT.

  1. The FAT-32 system enables users to manage 8 GB volumes with cluster sizes of just 4 kB. For hard drives up to a maximum of 32 GB, the cluster size is 16 kB

  2. FAT-32 also does not limit the number of directories or files in the root directory

  3. FAT-32 supports long file names

  4. None of these
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

null