COMPUTER SYSTEM ARCHITECTURE MCQS PART 19

COMPUTER SYSTEM ARCHITECTURE MCQS PART 19

1. Pipelining strategy is called implement
A. instruction execution   
B. instruction prefetch
C. instruction decoding   
D. instruction manipulation
Ans C

2. 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
Ans A

3. 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
Ans A

4. 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
Ans C

5. Interrupts which are initiated by an instruction are
A. internal       
B. external       
C. hardware   
D. software
Ans D

6. 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
Ans B

7.Virtual memory is –
(1) an extremely large main memory
(2) an extremely large secondary memory
(3) an illusion of an extremely large memory
(4) a type of memory used in super computers
(5) None of these
Answers:3

8.Fragmentation is -
(1) dividing the secondary memory into equal sized fragments
(2) dividing the main memory into equal size fragments
(3) fragments of memory words used in a page
(4) fragments of memory words unused in a page
(5) None of these
Answers:: 2

9.Which memory unit has lowest access time?
(1) Cache    
(2) Registers   
(3) Magnetic Disk  
(4) Main Memory 
(5) Pen drive
Answer :2

10.Cache memory-
(1) has greater capacity than RAM 
(2) is f aster to access than CPU Registers
(3) is permanent storage               
(4) f aster to access than RAM
(5) None of these
Answer 4