COMPUTER SYSTEM ARCHITECTURE MCQS PART 20

COMPUTER SYSTEM ARCHITECTURE MCQS PART 20

1.When more than one processes are running concurrently on a system-
(1) batched system   
(2) real-time system   
(3) multi programming system
(4) multiprocessing system   
(5) None of these
Answers:3


2.Which of the following memories must be refreshed many times per second?
a. Static RAM  
b. Dynamic RAM   
c. EPROM   
d. ROM    
e. None of these
Answer: Static RAM

3.RAM stands for
a. Random origin money            
b. Random only memory
c. Read only memory
d. Random access memory
e. None of these
Answer: Random access memory

4.CPU fetches the instruction from memory according to the value of
a) program counter                
b) status register
c) instruction register        
d) program status word
Answer:a.

5.A memory buffer used to accommodate a speed differential is called
a) stack pointer   
b) cache   
c) accumulator   
d) disk buffer
Answer:b.

6.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
Answer:c.

7.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:a.

8. Which field is used to requests for branching:
a. DR         b. CR        c. TR           d. BR
ANSWER D

9. which field is used to determine what type of transfer occurs:
a. CR           
b. SR           
c. BR            
d. MR
ANSWER A

10. Source statements consist of 5fields in microinstruction source code are:
a. Lable   
b. Micro-ops  
c. CD-spec    
d. BR-spec    
e. Address  
f. All of these
ANSWER F