Question Paper of Distributed operating system 2010(cse) 7th sem question Paper-2010
Distributed operating system (cse)
Paper –Cs-7002

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?


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?


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.

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?

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
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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