1. A microprogram is sequencer perform the operation ?
Read
Write
Read and Write
Read and Execute
Answer: Option D
2. In which condition one process holds the allocated resources and other waits for it ?
Non preemption
Mutual exclusion
Hold and wait
All of above
Answer: Option C
3. The operating mode of I/O devices is __ for different devices ?
Same
Different
Optimum
Medium
Answer: Option B
4. An exception condition in a computer system caused by an event external to the CPU is known as ?
Halt
Process
Interrupt
None of above
Answer: Option C
Explanation:
In my own experience I found very few questions with answer "None of above", if you do not know the answer then its always better to guess among other (If there is no negative marking) ;)