CS604 MCQs Operating System

1. In indirect inter process communication, a sender ________ mention the name of the recipient.
a) does
b) does not


2. The returned code to the child process after successful fork system call execution is
a) 1
b) 2
c) 3
d) 0


3. If the fork system call fails, it returns
a) 1
b) -1
c) 2
d) 0


4. When a process opens its first file explicitly it will get descriptor number _________
a) 1
b) 2
c) 3
d) 4


5. The problem with priority scheduling algorithm is ________.
Select correct option:
Deadlock
Starvation
Aging
Nice value


6. ___________ is the basis of queuing theory which is branch of mathematics used to analyze systems involving queues and servers.
Select correct option:
Little’s Formula
Deterministic Modeling
Queuing Theory
Queuing analysis



7. _________________ scheduling allows a process to move between queues.
Round Robin
First Come First Serve
Multilevel Feedback Queue
Shortest Remaining Time First