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
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Storage capacity
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Processor speed
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Data transfer rates
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Network bandwidth
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Frequency
B
Correct answer
Explanation
Yes, it i thes correct choice. It stands for Floating Point Operations Per Second. FLOPS are typically used to measure the performance of a computer's processor.
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It is an exact copy of a system's information.
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It restores the information.
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It is the ability to get a system up.
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All of the above
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None of the above
A
Correct answer
Explanation
An exact copy of a system's information is called back up.
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PRAM
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SRAM
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DRAM
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VRAM
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CD-ROM
C
Correct answer
Explanation
SDRAM stands for "Synchronous Dynamic Random Access Memory. DRAM is an improvement to standard DRAM because it retrieves data alternately between two sets of memory.
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Paging
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Segmentation
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Virtual Memory
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PROM
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Flash Memory
C
Correct answer
Explanation
Virtual memory is a memory management technique developed for multitasking kernels. This technique virtualizes the main storage available to a process or task, as a contiguous address space which is unique to each running process, or virtualizes the main storage available to all processes or tasks on the system as a contiguous global address space.
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Internal sorting
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External sorting
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Insertion sorting
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None of these
B
Correct answer
Explanation
This type of sorting performs sorting on the secondary memory.
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Allocate space in memory for programs
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Physically place the machine instructions and data into memory
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Resolve symbolic references between objects modules
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None of above
D
Correct answer
Explanation
All above are the functions of loader. Basically, loader have four functions as follows : -
- Allocate space in memory for programs
- Resolve symbolic references between objects modules
- Physically place the machine instructions and data into memory
- Adjust all address dependent location such as address constants, to corresponds to allocated space (relocation)
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11 bit address, 1024 bit cell size, 1024 cells
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10 bit address, 12 bit cell size, 1024 cells
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9 bit address, 8 bit cell size, 1024 cells
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None of above
C
Correct answer
Explanation
A 9 bit address, 8 bit cell size, 1024 cells is impossible since the address is too short. We cannot address 1024 cells with only 9 address bits as 29 = 512
So, the cell size is possible but it is not an advisable memory structure and not a standard size.
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malloc()
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new()
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free()
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delete()
C
Correct answer
Explanation
This function is used to free a block of allocated memory in 'C' program.
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Non-volatile
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Volatile
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Surplus
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Garbage
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_
D
Correct answer
Explanation
It is a form of automatic memory management. It is the automatic recycling of dynamically allocated memory.
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bubble memory
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key fielding
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dynamic reallocation
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hashing
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_
D
Correct answer
Explanation
It is the transformation of a string of characters into a usually shorter fixed-length value or key that represents the original string.
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Memory address register
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Memory buffer register
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Instruction register
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Internal register
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Program counter
E
Correct answer
Explanation
A program counter is a register in a computer processor that contains the address (location) of the instruction being executed at the current time.
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Checksum
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Redundancy checking
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Scan disk
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Chkdsk
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None of these
A
Correct answer
Explanation
It is a value used to ensure that data is stored without error. It is created by calculating the binary values in a block of data using some algorithm and storing the result with the data.
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RAID system increases the processor speed.
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RAID system increases the disk storage capacity.
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RAID system increases the disk storage capacity and availability.
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RAID system increases operating system efficiency.
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RAID system decreases operating system efficiency.
C
Correct answer
Explanation
RAID system configuration increases the disk storage capacity and availability by combining multiple disks in one unit logically.
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Security issues
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Data redundancy
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Data inconsistency
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All of the above
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Only 1 and 2
D
Correct answer
Explanation
Yes, all the above options are disadvantages
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RAM
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Cache
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ROM
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1 and 3
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Very high speed Registers
C
Correct answer
Explanation
BIOS is a firmware, which resides in the mother board, and it is made up of ROM.