OS Process Management & Co-ordination Objectives 46-60

1.       In priority scheduling (CPU scheduling)  Process Burst time Priority Arrival time
P1 10 3 0
P2 1 1 2
P3 2 4 4
P4 1 5 3
P5 5 2 1 The first process to get executed is____
1) P1 
2) P2 
3) P3 
4) P4
Answer: 2
2.       In priority scheduling (CPU scheduling)  Process Burst time Priority Arrival time
P1 10 3 0
P2 1 1 2
P3 2 4 4
P4 1 5 3
P5 5 2 1 The waiting time is_____.
1) 4.8 sec 
2) 5.8 sec 
3) 6.8 sec 
4) 5 sec
Answer: 3
3.       In priority scheduling (CPU scheduling)  Process Burst time Priority Arrival time
P1 10 3 0
P2 1 1 2
P3 2 4 4
P4 1 5 3
P5 5 2 1 The response time is________
1)      3.4 sec 
2)      4.4 sec 
3)      5.4 sec 
4)      6.4 sec
Answer: 3
4.       In round robin scheduling ( CPU scheduling) ,time quantum=4 milli secs Process Burst time Arrival time
P1 24 0
P2 3 0
P3 3 0 The first process which will get executed is_______
 1) P1 
2) P2 
3) P3 
4) P2 and P3
Answer: 2
5.       In round robin scheduling ( CPU scheduling) , time quantum=4 millisecs Process Burst time Arrival time
 P1 24 0
P2 3 0
P3 3 0 The process which will get executed at last _______
1) P1 
2) P2 
3) P3 
4) P2 and P3
 Answer: 1
6.       In round robin scheduling ( CPU scheduling) , time quantum=4 millisecs Process Burst time Arrival time
 P1 24 0
P2 3 0
P3 3 0
The waiting time for the given problem is_____.
1) 4 sec 
2) 5 sec 
3) 6 sec
 4) 7 sec
Answer: 2
7.       In round robin scheduling ( CPU scheduling), time quantum=4 millisecs  Process Burst time Arrival time
 P1 24 0
P2 3 0
P3 3 0 The turn around time for the given problem is_______.
1) 12 sec 
2) 13 sec 
3) 14 sec 
4) 15sec
 Answer: 4
8.       In round robin scheduling ( CPU scheduling) , time quantum=4 millisecs Process Burst time Arrival time
P1 24 0
P2 3 0
P3 3 0 The response time for the given problem is _______.
1)1 sec
2) 2 sec 
3) 3 sec
4) 4 sec
 Answer: 3
9.       In round robin scheduling ( CPU scheduling) , time quantum=4 millisecs Process Burst time Arrival time
 P1 24 0
P2 3 0
P3 3 0 The process which will complete the last _______
1) P1 
2) P2 
3) P3 
4) P4
Answer: 2
10.   In round robin scheduling ( CPU scheduling), time quantum=4 millisecs  Process Burst time Arrival time
P1 24 0
P2 3 0
P3 3 0 All the processes will get executed _______
1) At the starting of 24th sec
2) At the ending of 24th sec
3) At the ending of 25th sec
4) At the ending of 23rd sec
Answer: 2
11.   In SJF algorithm for CPU scheduling  Process Burst Time Arrival time 
P1 6 1
P2 8 2
P3 7 3
P4 3 4 The first process which will complete its execution _______
1) P1 
2) P2 
3) P3 
4) P4
Answer: 1
12.   ____ is the state of processor, when a process is waiting for some event to occur.
1) ready state 
2) wait state 
3) dead state 
4) None
Answer: 2
13.   Which of the following are Scheduling algorithms:
1) multi level queue
2) shortest job first
3) Least recently used
4) both 1 and 2
Answer: 4
14.   _________ systems are required to complete a critical task within a guaranteed amount of time.
1) Real time  
2) Networking systems
 3) Distributed systems
4) None of above
 Answer: 1
15.   The following are the criteria for CPU scheduling algorithm evaluation
1) Maximum CPU utilization under the constraint that maximum response time is one second
2) Maximum throughput such that turnaround time is (on an average) linearly proportional to total execution time.
3) Both
4) None

Answer: 3



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