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Free download in PDF Computer Organization and Architecture Multiple Choice Questions and Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
(1)
Program always deals with
[A]
logical address
[B]
relative address
[C]
physical address
[D]
absolute address
(2)
Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called
[A]
fragmentation
[B]
paging
[C]
mapping
[D]
none of the mentioned
(3)
Run time mapping from virtual to physical address is done by
[A]
memory management unit
[B]
CPU
[C]
PCI
[D]
none of the mentioned
Answer: memory management unit
(4)
Which one of the following is the address generated by CPU?
[A]
physical address
[B]
absolute address
[C]
logical address
[D]
none of the mentioned
(5)
A memory buffer used to accommodate a speed differential is called
[A]
stack pointer
[B]
cache
[C]
accumulator
[D]
disk buffer
(6)
CPU fetches the instruction from memory according to the value of
[A]
program counter
[B]
status register
[C]
instruction register
[D]
program status word
(7)
RAM stands for
[A]
Random origin money
[B]
Random only memory
[C]
Random access memory
[D]
None of these
Answer: Random access memory
(8)
When more than one processes are running concurrently on a system-
[A]
batched system
[B]
real-time system
[C]
multi programming system
[D]
multiprocessing system
Answer: multi programming system
(9)
Cache memory-
[A]
has greater capacity than RAM
[B]
is f aster to access than CPU Registers
[C]
is permanent storage
[D]
f aster to access than RAM
Answer: f aster to access than RAM
(10)
Which memory unit has lowest access time?
[A]
Cache
[B]
Registers
[C]
Magnetic Disk
[D]
Main Memory
(11)
Fragmentation is –
[A]
dividing the secondary memory into equal sized f ragments
[B]
dividing the main memory into equal size f ragments
[C]
f ragments of memory words used in a page
[D]
f ragments of memory words unused in a page
Answer: dividing the main memory into equal size f ragments
(12)
Virtual memory is –
[A]
an extremely large main memory
[B]
an extremely large secondary memory
[C]
an illusion of an extremely large memory
[D]
a type of memory used in super computers
Answer: an illusion of an extremely large memory
(13)
A time sharing system imply
[A]
more than one processor in the system
[B]
more than one program in memory
[C]
more than one memory in the system
[D]
None of above
Answer: more than one program in memory
(14)
Interrupts which are initiated by an instruction are
[A]
software
[B]
hardware
[C]
internal
[D]
external
(15)
The branch logic that provides decision making capabilities in the control unit is known as
[A]
controlled transfer
[B]
conditional transfer
[C]
unconditional transfer
[D]
none of above
Answer: unconditional transfer
(16)
A stack pointer is
[A]
a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
[B]
a register that decodes and executes 16-bit arithmetic expression.
[C]
The first memory location where a subroutine address is stored.
[D]
a register in which flag bits are stored
Answer: a 16-bit register in the microprocessor that indicate the beginning of the stack memory.
(17)
A stack is
[A]
an 8-bit register in the microprocessor
[B]
a 16-bit register in the microprocessor
[C]
a set of memory locations in R/WM reserved for storing information temporarily during the execution of computer
[D]
a 16-bit memory address stored in the program counter
Answer: an 8-bit register in the microprocessor
(18)
Pipelining strategy is called implement
[A]
instruction execution
[B]
instruction decoding
[C]
instruction prefetch
[D]
instruction manipulation
Answer: instruction decoding
(19)
CPU does not perform the operation
[A]
data transfer
[B]
logic operation
[C]
arithmetic operation
[D]
all of above
(20)
A complete microcomputer system consists of
[A]
microprocessor
[B]
memory
[C]
peripheral equipment
[D]
all of above
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