Download DBATU B.Tech 2019 March 2nd Semester Operating Systems Question Paper

Download DBATU (Dr. Babasaheb Ambedkar Technological University) B Tech 2019 March (Bachelor of Technology) 2nd Semester Operating Systems Question Paper

DR. BABASAHEB AMBEDKAR TECHNOLOGICAL UNIVERSITY, LONERE
_ Mid Semester Examination ? March 2019
Course: S.Y. B.Tech (CSE)
Subject Name: Operating Systems
Max Marks: 20 Date:- 13/03/2019
InStructions to the Students:
1. Check that you have received a correct Question paper.
'2. Assume suitable data if necessary and mention it clearly
3. Draw NEAT labeled diagrams wherever necessary
Q.1. Attempt any ? Questions
Mention} purpose of system call.
Differentiate between batch system and time sharing system.
What do you mean by PCB?
De?ne turnaround time. .
What are cooperative processes?
De?ne starvation.
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Draw labeled process state transition diagram.
Q. 2. Attempt any Two of the following
1. What are differences between monolithic kernel and microkemel?
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synchronization tool.
.5. What is scheduler? Describe different types of scheduler?
Q3. Attempt any One of the following
1. Consider the following set of processes with the length of CPU burst time
Process Burst Time Priority
P1 10 3
P2 1 1
P3 2 5
P4 1 4
P5 ? 5 2
The processes are assumed to have arrived in the order P1, P2, P3, P4, P5 all at time 0
I V Draw Gantt chart that illustrate the execution of these processes using preemptive
Priority scheduling ( smaller priority number implies higher priority) and RR
scheduling ( time quantum = 2)
following set of processes.
Process Arrival Time Burst Time
P1 1 7
P2 2
P3 3 1
P4 4 2
P5 5 8
.2. What do you mean by process synchronization? Explain how semaphore can used as
What is turnaround time of each process for each of the scheduling algorithm?
2. Evaluate performance of preemptive vs. non-preemptive SJF scheduling algorithm using
Sem: 11
Subject Code: BTCOC403
Duration:- 1 Hr.
(1*6 = 6 Marks)
(2*3 =6 Marks)
1* 8 = 8 Marks)
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