Question Paper of Distributed operating system 2010(cse)

B.tech 7th sem question Paper-2010
Distributed operating system (cse)
Paper –Cs-7002


Section-A
1).Explain te main diffeence between a Network operating system and distributed operating system.
B).explain the main guidelines and principles that a distributed operating system designer must follow for good performance of his/her system.

2) a) Explain any one non-token based distributed mutual exclusion algorithm?

B) What are cooperative autonomous application?

Section-B

3) Discribe in detail DFS design and implementations Issues.

4. A)Discribe in detail static process scheduling with communicatin
B).What is real- time scheduling?

Section-C

5) describe in detail stict,week and release consistency modles.

6)a) describe in detail mandatory access control models.

B) describe in detail discretionary access control models.


Section-D
7. A) Explain how the deadlock handling in a distributed system environment is different from that in conventional environment.
B) Ehat sre semaphores?

8).Suppose that the coordinator of a transaction crashes after it has recorded the intentions list entry but before it has recorded the participants list or sent out the can
Commit – requests.Describe how the participants resolve the situation.what it be any better to record the participant list before the intentions list entry?


Section-E
9) Write short answers of the following:
A) What is critical region?
B) list advantages and disadvantages of distributed systems.
C )list of acid properties of a transaction.
D) define cryptography.
E) What are the major characteristics of distributed file system?
F) what are key distribution issues relevant to distributed security?
G)Why do some distributed system use two-level
Naming?
H)Define transation.
I) describing dynamic load sharing and balancing.
J)differentiate between centralized os and network OS.



Note:- This paper came in dec 2010 in HPU university


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