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 technology operating systems
  1. True

  2. False

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

RAM is volatile memory, meaning it loses its contents when power is removed. The question incorrectly states RAM is 'UN Volatile' (non-volatile). Non-volatile memory like ROM, flash storage, or hard drives retains data without power. The 'In Currently Use' phrasing is also grammatically incorrect but doesn't change the core fact - RAM holds active programs and data but requires constant power to maintain them.

Multiple choice technology operating systems
  1. ROM loses information when the computer is powered off.

  2. ROM chips can be plugged into the motherboard to provide more memory.

  3. ROM can't be written to , it's preprogrammed.

  4. None

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

ROM is Read-Only Memory that cannot be written to after manufacture. It is preprogrammed with permanent instructions. Option A is false because ROM retains data without power. Option B is false because ROM is soldered or built-in, not plugged in like RAM.

Multiple choice technology operating systems
  1. Magnetic card

  2. Memory card

  3. Smart card.

  4. Processor card.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Smart cards contain both a processor chip and memory, allowing them to store and update information. Magnetic strips (magnetic cards) have no processor. Memory cards lack a processor. 'Processor card' is not the standard term.

Multiple choice technology operating systems
  1. A floppy disk

  2. A zip disk

  3. A hard disk

  4. A magnetic tape drive.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hard disks have faster access times compared to other listed storage devices. They use spinning platters with read/write heads that can quickly access any data location, unlike sequential access devices like magnetic tape or slower removable media like floppy/zip disks.

Multiple choice technology web technology
  1. Global Assembly Cache

  2. Global Access Cache

  3. Guide Access Cache

  4. Global Alert Cache

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

GAC stands for Global Assembly Cache, a .NET framework component that stores assemblies designated to be shared across multiple applications. It's a centralized repository for strongly-named .NET assemblies.

Multiple choice technology
  1. Blu-ray

  2. CD

  3. DVD

  4. Floppy Diskette

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Blu-ray discs have the highest storage capacity among the options: standard single-layer Blu-ray holds 25GB, dual-layer holds 50GB. DVDs hold 4.7GB (single-layer) or 8.5GB (dual-layer). CDs hold 700MB. Floppy diskettes hold only 1.44MB. Blu-ray clearly has the most information capacity.

Multiple choice technology
  1. 3 MB private bytes, 5 MB page file

  2. 5 MB private bytes, 3 MB page file

  3. 0 private bytes, 8 MB page file

  4. Unlimited

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In IIS 7.0, each application pool has a baseline memory footprint of approximately 3 MB of private bytes and 5 MB of page file usage. This is the minimum memory overhead for a worker process before the actual application code even starts executing. Options B and C swap or zero out values incorrectly, while D is incorrect because application pools have fixed overhead costs.

Multiple choice technology
  1. True

  2. False

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

IIS application pools can have memory limits configured through several settings: 'Private Memory Limit' (kernel-mode limit on private bytes), 'Virtual Memory Limit' (limits virtual address space), and 'Request Memory Limit' (per-request memory threshold). When these limits are exceeded, IIS can recycle the worker process, take no action, or trigger other configurable responses. This prevents runaway processes from consuming all server memory.

Multiple choice technology programming languages
  1. cache option specifies minimum value of the sequence

  2. cache option specifies how many sequence values will be stored in memory for faster access

  3. cache option specifies maximum value of the sequence

  4. cache option specifies the value with which the sequence will be incremented

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The CACHE option in database sequences preallocates and holds a specified number of sequence values in memory for faster access. It does not dictate increment values, nor does it specify minimum or maximum sequence boundaries.

Multiple choice technology embedded technologies
  1. SP, BUSCO/SPM-FPGA and the SDRAM

  2. SP and the SDRAM

  3. None of the Above

  4. Both a and b can be correct

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

For SPb3 and SPB31 boards, the SPM (Service Processor Module) is architecturally composed of the SP, the BUSCO/SPM-FPGA, and the SDRAM. Distractors omitting the FPGA interface or stating a and b are correct are incomplete.

Multiple choice technology embedded technologies
  1. All SPM SDRAM tested

  2. The cache memory is enabled during all other tests and thus indirectly tested

  3. both a and b

  4. Ethernet communication controller

  5. both a and d

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

For SPB21 and SPb3 boards, hardware tests at SPU and SPM restart cover testing all SPM SDRAM, and the cache memory is enabled during other tests to be tested indirectly. Thus, 'both a and b' is correct, whereas the Ethernet controller test is not the primary combined option.

Multiple choice technology embedded technologies
  1. Shared Preferences

  2. Internal Storage

  3. External Storage

  4. SQLite Databases

Reveal answer Fill a bubble to check yourself
A,B,C,D Correct answer
Explanation

Android provides multiple data storage options: SharedPreferences for key-value pairs, Internal Storage for private app data, External Storage for shared files, and SQLite databases for structured data. All four are valid, commonly-used storage mechanisms in Android applications.