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 softskills teamwork
  1. Static Cache

  2. Dynamic Cache

  3. Persistant Cache

  4. Shared Cache

  5. All the Above

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

Informatica Lookup transformations support various cache types including Static (fixed data), Dynamic (updates during session), Persistent (saved across sessions), and Shared (used by multiple transformations). Therefore, 'All the Above' is the comprehensive and correct classification.

Multiple choice softskills business skills
  1. Share drive is the same as local drive

  2. Share drive and local drive exist in the same CPU

  3. Share drive is different from local drive

  4. CPU has only share drives in it.

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

A local drive is physically attached to the specific computer (like a C: drive), whereas a shared drive is a network-mapped location residing on a different server or computer. They serve different purposes and exist in different physical locations.

Multiple choice technology mainframe
  1. B37

  2. D37

  3. E37

  4. C37

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

To answer this question, the user needs to know about different types of system errors that can occur due to a lack of available disk space.

Each option refers to a specific system error that can occur due to disk space issues, and the user needs to identify the option that is not an example of an abend generated due to a lack of available disk space.

A. B37: This option is an example of an abend generated due to a lack of available disk space. B37 occurs when the system cannot allocate a new data set due to insufficient space.

B. D37: This option is also an example of an abend generated due to a lack of available disk space. D37 occurs when a job runs out of space in a PDS (Partitioned Data Set) or PDSE (Partitioned Data Set Extended).

C. E37: This option is an example of an abend generated due to a lack of available disk space. E37 occurs when a job runs out of space in an SMS-managed data set.

D. C37: This option is not an example of an abend generated due to a lack of available disk space. C37 occurs when a job or program attempts to access a data set that does not exist.

Therefore, the correct answer is:

The Answer is: D. C37

Multiple choice technology programming languages
  1. Module

  2. Private

  3. Satellite

  4. Shared

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

Satellite assemblies contain culture-specific resources such as translated strings, images, or other localized content. They are compiled separately from the main assembly and are automatically loaded by the CLR based on the current thread's UI culture setting, allowing applications to support multiple languages without duplicating code.

Multiple choice technology programming languages
  1. True

  2. False

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

Garbage collection reclaims memory from unused objects, but it doesn't prevent out-of-memory errors. If you create objects faster than GC can collect them, or if you have memory leaks (unintentional object references), the program can still exhaust available heap space. GC is a management tool, not a memory guarantee.

Multiple choice technology web technology
  1. Serialization

  2. Garbage Collection

  3. Assemblies

  4. Overriding

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

The .NET Framework provides automatic memory management through Garbage Collection. The Garbage Collector automatically allocates and manages memory for applications, reclaiming memory from objects that are no longer in use. Serialization converts objects to streams, Assemblies are deployment units, and Overriding is an object-oriented programming concept.

Multiple choice technology mainframe
  1. An addressing scheme that allows external disk storage to appear as main storage.

  2. Each running program can assume it has access to all of the storage defined by the architecture's addressing scheme.

  3. a and b

  4. a or b

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

Virtual storage in MVS (Multiple Virtual Storage) encompasses both aspects: it makes external disk storage appear as main storage to programs AND allows each running program to assume it has access to the full address space defined by the architecture. This virtualization enables efficient memory utilization and program isolation.

Multiple choice technology
  1. NTFS

  2. ext3

  3. HPFS

  4. All of the above

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

Windows 95 natively supported FAT and FAT32 file systems, but not NTFS (introduced in Windows NT), HPFS (OS/2), or ext3 (Linux). All three file systems listed in options A, B, and C were not supported by Windows 95, making option D correct. NTFS support came later in Windows 2000/XP for consumer versions.

Multiple choice technology
  1. Platter

  2. Pwrite

  3. Access Arm

  4. MFM

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

A hard disk drive contains platters (storage disks), access arms (read/write head mechanisms), and uses encoding schemes like MFM (Modified Frequency Modulation). Pwrite is a Unix/Linux system call for writing to file descriptors at specific offsets, unrelated to hard disk drive hardware components.