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Which of the following are disadvantages of spooling?
a) large disk space              
b) increase 
disk traffic
c) not practical for real-time
d) 
all of these

d

Technique used for controlling the movement of data between system components is called……
a) spooling                           
b) buffering
c) handshaking   
d) none of these

c

Which of the following techniques are used in interrupts?
a) polling                              
b) interrupts
c) both a & b                       
d) none of these

c

Which of the following are disadvantage of software poll?
a) large disk space              
b) 
increase disk traffic
c) time consuming             
d) all of these

c

How many approaches are used in interrupt priorities?
a) one    
b) two    
c) three  
d) four

b

Explanation: disable interrupts, define priorities


What does ISR stand for?
a) interrupt-service routine                            
b) internal-service routine
c) input-service routine      
d) all of these

a