Exam Details
| Subject | distributed operating systems | |
| Paper | ||
| Exam / Course | computer science and engineering | |
| Department | ||
| Organization | Vardhaman College Of Engineering | |
| Position | ||
| Exam Date | May, 2018 | |
| City, State | telangana, hyderabad |
Question Paper
VARDHAMAN COLLEGE OF ENGINEERING
(AUTONOMOUS)
B. Tech VI Semester Regular Examinations, May 2018
(Regulations: VCE-R15)
DISTRIBUTED OPERATING SYSTEMS
(Information Technology)
Date: 28 May, 2018 FN
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1.
What are the advantages of distributed systems over independent PCs? What are its disadvantages?
7M
Differentiate between loosely coupled systems and tightly coupled systems.
8M
2.
Briefly explain the various combinations of hardware and software in a computer system.
9M
What is transparency in a distributed system? What are the various aspects of transparency.
6M
Unit II
3.
Explain the blocking vs Nnonblocking and Reliable vs Unreliable communication primitives used in a client-server model.
8M
Explain the ATM reference model with a neat diagram.
7M
4.
What is RPC? Explain the basic RPC operation with a neat diagram.
7M
Discuss the following design issues of group communication:
i. Closed groups vs open groups
ii. Group Membership
iii. Group Addressing
8M
Unit III
5.
Discuss centralized vs distributed vs token ring algorithm with respect sharing of resources.
10M
Discuss the properties of transactions.
5M
6.
Mention the steps to follow in designing the system to prevent Deadlock so that deadlocks are structurally impossible.
7M
Explain:
i. Distributed algorithm for achieving mutual exclusion
ii. The Bully algorithm
8M
Unit IV
7.
What are the various design issues for processor allocation algorithms?
8M
Explain how fault tolerance can be achieved using active replication and redundancy?
7M
8.
Write a note on File service interface and discuss the semantics of file sharing in a distributed file system.
9M
With a neat diagram, explain the implementation of Sun's Network File System.
6M
Unit V
9.
Explain the write-through cache consistency protocol.
7M
Discuss how to implement Linda efficiently.
8M
10.
Explain the object based distributed shared memory in detail.
8M
Write a note on PRAM consistency model.
7M
(AUTONOMOUS)
B. Tech VI Semester Regular Examinations, May 2018
(Regulations: VCE-R15)
DISTRIBUTED OPERATING SYSTEMS
(Information Technology)
Date: 28 May, 2018 FN
Time: 3 hours
Max Marks: 75
Answer ONE question from each Unit
All Questions Carry Equal Marks
Unit I
1.
What are the advantages of distributed systems over independent PCs? What are its disadvantages?
7M
Differentiate between loosely coupled systems and tightly coupled systems.
8M
2.
Briefly explain the various combinations of hardware and software in a computer system.
9M
What is transparency in a distributed system? What are the various aspects of transparency.
6M
Unit II
3.
Explain the blocking vs Nnonblocking and Reliable vs Unreliable communication primitives used in a client-server model.
8M
Explain the ATM reference model with a neat diagram.
7M
4.
What is RPC? Explain the basic RPC operation with a neat diagram.
7M
Discuss the following design issues of group communication:
i. Closed groups vs open groups
ii. Group Membership
iii. Group Addressing
8M
Unit III
5.
Discuss centralized vs distributed vs token ring algorithm with respect sharing of resources.
10M
Discuss the properties of transactions.
5M
6.
Mention the steps to follow in designing the system to prevent Deadlock so that deadlocks are structurally impossible.
7M
Explain:
i. Distributed algorithm for achieving mutual exclusion
ii. The Bully algorithm
8M
Unit IV
7.
What are the various design issues for processor allocation algorithms?
8M
Explain how fault tolerance can be achieved using active replication and redundancy?
7M
8.
Write a note on File service interface and discuss the semantics of file sharing in a distributed file system.
9M
With a neat diagram, explain the implementation of Sun's Network File System.
6M
Unit V
9.
Explain the write-through cache consistency protocol.
7M
Discuss how to implement Linda efficiently.
8M
10.
Explain the object based distributed shared memory in detail.
8M
Write a note on PRAM consistency model.
7M
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