COMPUTER SYSTEM ARCHITECTURE MCQS PART 88

COMPUTER SYSTEM ARCHITECTURE MCQS PART 88

1. When CPU invokes a subroutine it performs following functions:
a. Pushes updated PC content(return address) on stack
b. Loads PC with starting address of subroutine
c. Loads PC with starting address of ALU           
d. Both a & b
Answer D

2.Which technique is used that identifies the highest priority resource by means of software:
a. Daisy chaining       
b. Polling       
c. Priority          
d. Chaining
ANSWER D
3. DMAC stands for:
a. Direct memory access controller
b. Direct memory accumulator controller
c. Direct memory access content         
d. Direct main access controller
ANSWER A

4.A) IOP stands for:
a. Input output processor
b. DCP stands for:
c. Data communication processor
Answer A

5. Which may be classified as a processor with the direct memory access capability that communicates with I/O devices:
a. DCP           
b. IOP        
c. Both          
d. None
 ANSWER B

6. The processor that communicates with remote terminals like telephone or any other serial    communication media in serial fashion is called
  _____:
a. DCP     
b. IOP          
c. Both         
d. None
ANSWER A

7. Instruction that are used for reading from memory by an IOP called _______:
a. Commands     
b. Block diagram      
c. Interrupt         
d. None of these
ANSWER A

8. Data communication with a remote device a special data communication is used_______:
a. Multiprocessor      
b. Serial communication    
c. DCP    
d. IOP
ANSWER B

9. CRC stands for: Cyclic redundancy check

10. Which is used for synchronous data, PID is process ID, followed by message, CRC code and EOP indicating end of block:
a. DCP      
b. CRC        
c. IOP        
d. SYNC
ANSWER D