MCA-11
June Examination 2016
MCA IInd Year Examination
Operating System
Paper MCA-11
Time 3 Hours Max. Marks 80
Note: The question paper is divided into three sections B and C. Write answers as per given instructions.
Section A 8 × 2 16
(Very Short Answer Questions)
Note: Answer all questions. As per the nature of the question delimit your answer in one word, one sentence or maximum upto 30 words. Each question carries 2 marks.
What do you mean by belady's anomaly?
What are the content of PCB (Process Control Block)?
Give the definition of Operating System.
List some features of Real time System.
What are the different states of process.
Why thread is called Light Weight Process?
When Race Condition arises?
(viii) What is Logic Bomb?
572
MCA-11 200 3 (P.T.O.)
MCA-11 200 3 (Contd.)
572
Section B 4 × 8 32
(Short Answer Questions)
Note: Answer any four questions. Each answer should not
exceed 200 words. Each question carries 8 marks.
What is Semaphore? Explain with example.
Explain the concept of segmentation with neat diagram.
Define the essential properties of distributed operating
system.
What is the role of Scheduler? Differentiate Primitive and
Non-Primitive Scheduling.
What is the significance of Virtual Memory? Explain with
example.
Discuss the working principle of Direct Memory Access.
What is user authentication? Explain different types of user
authentication scheme.
Write short note on Remote Procedure Call.
Section C 2 × 16 32
(Long Answer Questions)
Note: Answer any two questions. You have to delimit your each
answer maximum upto 500 words. Each question carries
16 marks.
10) Why security is needed in operating system? Discuss various
security threads and goals.
MCA-11 200 3
572
11) What is Page Fault? Discuss any three page replacement
algorithm with example.
12) What are the advantages of Multiprocessor Operating System?
Discuss various types of Multiprocessor Operating System.
13) Discuss in detail about:
Deadlock Detection
Banker's algorithm to avoid deadlock.