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
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1 in Laptop and 2 in Desktop
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2 in Laptop and 3 in Desktop
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2 in Laptop and 2 in Desktop
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3 in Laptop and 2 in Desktop
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3 in Laptop and 3 in Desktop
C
Correct answer
Explanation
There are two different slots for RAM in both Laptop and Desktop.
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SAM
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ROM
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Virtual memory
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DVD
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Floppy disk
C
Correct answer
Explanation
With virtual memory, what the computer can do is look at RAM for areas that have not been used recently and copy them onto the hard disk. This frees up space in RAM to load the new application.
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Main memory
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Disk storage
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L1 cache
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L2 cache
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Processor registers
B
Correct answer
Explanation
Disk storage may take hundreds of thousands of cycles latency to be fetched but it is very large.
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RAID level 3
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RAID level 1
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RAID level 6
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Two-very-safe
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Proxy archived log backups
A
Correct answer
Explanation
In RAID level 3, disk controllers can detect whether a sector has been read correctly.
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Media management catalog
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Media management application
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Duplicate database
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Proxy archived log backup
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Command file
B
Correct answer
Explanation
This component of the RMAN environment allows RMAN to backup to a storage system such as tape.
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RAID level 0
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RAID level 1
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RAID level 6
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Two-very-safe
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Registration
A
Correct answer
Explanation
This RAID level refers to disk arrays with striping at the level of blocks, but without any replication.
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Five
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Four
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Six
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Two
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None of these
C
Correct answer
Explanation
There are 3 types of file allocation methods in an operating system. These are:
- Contiguous allocation
- Linked allocation
- Indexed allocation
B
Correct answer
Explanation
This is the correct answer because there are only 6 disk scheduling algorithms in operating system. These are:
First Come-First Serve (FCFS)
Shortest Seek Time First (SSTF)
Elevator (SCAN)
Circular SCAN (C-SCAN)
LOOK
C-LOOK
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Memory address register
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Base register
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Program counter
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Instruction register
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Stack pointer
D
Correct answer
Explanation
It holds the instruction code currently being executed.
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Main memory
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Cache memory
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Internal memory
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Secondary memory
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All the memory types have the same speed
C
Correct answer
Explanation
The internal memory refers to the high-speed register. It is the fastest memory.
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RAM
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Monitor
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Motherboard
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ALU
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CU
E
Correct answer
Explanation
CU retrieves the instructions using registers one by one from the program, which is stored in the memory. The instructions are interpreted (or decoded) by the control unit itself, and then the decoded instructions are sent to the ALU for processing.
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It holds the address of the data item to be retrieved from the main memory.
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It holds the starting address of the memory stack.
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It holds the address of the next instruction to be executed.
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It holds the instruction code currently being executed.
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It holds the address of the top element of the memory stack.
B
Correct answer
Explanation
It is done by Base Address Register.
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ADRAM
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DDR SDRAM
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RDRAM
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CDRAM
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DDRCDRAM
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PROM
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EPROM
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EEPROM
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EEEPROM
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Flash EPROM
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Virtual memory
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Thrashing
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Paging
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Batch operating system
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Throughput
A
Correct answer
Explanation
This option is correct as virtual memory is the hardware technique where the sysytem appears to have more memory that it actually does.This is done by time sharing , the physical memory and storage partsof the memory disk when they are actively being used.