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
-
Memory
-
Storage
-
Input
-
Output
-
CPU
A
Correct answer
Explanation
In computing, memory refers to the physical devices used to store programs or data on a temporary or permanent basis to be used by a computer.
-
becomes less
-
becomes more
-
remains constant
-
varies irregularly
-
increases or decreases
B
Correct answer
Explanation
Number.of fragments in the memory increases.
-
If the page is corrupted
-
If the page is present in main memory
-
If the page is not in the main memory
-
If one tries to divide a number by 0
-
If the page is present in secondary memory
C
Correct answer
Explanation
This is called page miss or page fault.
-
A specific memory location
-
Overloading the system with many files
-
A part of operating system
-
Single contiguous memory to run large programs
-
Storing the files on hard disk
D
Correct answer
Explanation
Overlay was used in older days to run a large program in small memory by swapping.
-
the page is not in main memory
-
the page is in main memory
-
the page is corrupted by application software
-
we try to divide a number by zero
A
Correct answer
Explanation
A page fault is triggered when the CPU references a virtual memory page not currently loaded in physical RAM. The OS must then load it from disk. Option B describes normal operation, C is a different error, and D is a software exception.
-
the instruction set architecture
-
page size
-
physical memory size
-
number of processes in memory
A
Correct answer
Explanation
Page frames are allocated in main memory, for virtual memory pages. This no. of page frames depends upon the instruction set architecture.
-
Base register
-
Limit register
-
Dispatcher
-
Valid-invalid bit
-
TLB (Translation Look-Aside Buffer)
D
Correct answer
Explanation
Valid-invalid distinguishes the pages in the memory and the pages on the disk. If the bit is set as valid, the page is in the memory is legal. If the bit is set as invalid, the page is in the disk or invalid or both.
TLB is a high speed memory, which is used to speed up the paging process.
-
paged memory management system
-
segmented memory management system
-
virtual memory management
-
compaction
-
none of these
C
Correct answer
Explanation
It is used in virtual memory management system, with demand paged virtual memory. Pages are only loaded when they are demanded during the program execution.
-
Fetch
-
Placement
-
Replacement
-
Memory
B
Correct answer
Explanation
Placement policy determines where in real memory a process piece is to reside.
-
RAM
-
Hard disk
-
Optical device
-
Pen drive
-
None of these
B
Correct answer
Explanation
Hard disk is a high speed disk and is usually known as swap space device.
-
operand address calculation
-
instruction address calculation
-
instruction fetch
-
operand fetch
-
operand store
B
Correct answer
Explanation
This state in instruction cycle determines the address of the next instruction to be executed.
-
instruction register
-
program counter
-
register array
-
stack pointer
-
address/data buffer
C
Correct answer
Explanation
This component of 8085 microprocessor is a collection of registers that are user-visible and help to store the operands or result of the operation.
-
operation repertoire
-
data types
-
instruction format
-
register
-
addressing
C
Correct answer
Explanation
This design issue in designing an instruction set takes care of instruction length, number of addresses, size of various fields and so on.
D
Correct answer
Explanation
This register of the CPU contains a word of data to be written to memory or the word most recently used.
B
Correct answer
Explanation
This type memory cell uses a single transistor and a capacitor to store a bit of data.