Download VTU BE 2020 Jan CSE Question Paper 15 Scheme 6th Sem GS654 Distributed Computing System

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Sixth Semester B.E. Degree Examination, Dec.2019/Jan.2020
Distributed Computing System

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USN
GS654
Time: 3 hrs.
Max. Marks: 80
Note: Answer any FIVE full questions, choosing

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ONE full question from each module.
?
Module-1
a. Define web-briefly. Explain three main standard technological components of web.
(10 Marks)

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b. List out the challenges of distributed system. Explain any three of them.
(06 Marks)
OR
2 a. Briefly explain system architectures in distributed system designing.
(10 Marks)

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b. Define failure model. Explain omission failures. (06 Marks)
Module-2
3 a. Briefly explain the characteristics of inter-process?communication. (06 Marks)
b. With neat sketch, explain request reply protocol and also discuss HTTP methods in client ?
server communication. (10 Marks)

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4 a.
b.
c.
OR
Derive middleware. With neat diagram explain middle ware layer. (06 Marks)

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Explain R.M.I invocation semantics. (05 Marks)
With a schematic diagram, explain role of client and server stub procedures in RPC in the
context of a procedural language. (05 Marks)
5 a.
b.

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C.
Module-3
Draw a neat diagram and explain the core operating system functionali
Compare process and thread in distributed system.
With schematic diagram, explain monolithic kernel and microkernel.

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between monolithic kernel and microkernel.
ty. (04 Marks)
(03 Marks)
And also differentiate
(09 Marks)

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OR
6 a. What are the requirements of distributed file system? Explain any five of them. (06 Marks)
b. With neat sketch, explain architecture of Sun NFS. (10 Marks)
7 a.
b.

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8 a.
b.
Module-4
Define NTP. With neat diagram, discuss the synchronization subnet in an NTP
implementation. And also explain different modes of NTP servers synchranization.

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(07 Marks)
Briefly explain the logical time and logical clocks. (09 Marks)
OR
With respect to mutual exclusion, discuss essential requirements and evaluating the
performance of algorithm and also draw the diagram of server managing a mutual exclusion

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token for a set processes. (09 Marks)
What is an election algorithm? Explain ring based election algorithm. (07 Marks)
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ffi

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4

--- Content provided by FirstRanker.com ---

1
)
Sixth Semester B.E. Degree Examination, Dec.2019/Jan.2020
Distributed Computing System
USN

--- Content provided by FirstRanker.com ---

GS654
Time: 3 hrs.
Max. Marks: 80
Note: Answer any FIVE full questions, choosing
ONE full question from each module.

--- Content provided by FirstRanker.com ---

?
Module-1
a. Define web-briefly. Explain three main standard technological components of web.
(10 Marks)
b. List out the challenges of distributed system. Explain any three of them.

--- Content provided by FirstRanker.com ---

(06 Marks)
OR
2 a. Briefly explain system architectures in distributed system designing.
(10 Marks)
b. Define failure model. Explain omission failures. (06 Marks)

--- Content provided by FirstRanker.com ---

Module-2
3 a. Briefly explain the characteristics of inter-process?communication. (06 Marks)
b. With neat sketch, explain request reply protocol and also discuss HTTP methods in client ?
server communication. (10 Marks)
4 a.

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b.
c.
OR
Derive middleware. With neat diagram explain middle ware layer. (06 Marks)
Explain R.M.I invocation semantics. (05 Marks)

--- Content provided by FirstRanker.com ---

With a schematic diagram, explain role of client and server stub procedures in RPC in the
context of a procedural language. (05 Marks)
5 a.
b.
C.

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Module-3
Draw a neat diagram and explain the core operating system functionali
Compare process and thread in distributed system.
With schematic diagram, explain monolithic kernel and microkernel.
between monolithic kernel and microkernel.

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ty. (04 Marks)
(03 Marks)
And also differentiate
(09 Marks)
OR

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6 a. What are the requirements of distributed file system? Explain any five of them. (06 Marks)
b. With neat sketch, explain architecture of Sun NFS. (10 Marks)
7 a.
b.
8 a.

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b.
Module-4
Define NTP. With neat diagram, discuss the synchronization subnet in an NTP
implementation. And also explain different modes of NTP servers synchranization.
(07 Marks)

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Briefly explain the logical time and logical clocks. (09 Marks)
OR
With respect to mutual exclusion, discuss essential requirements and evaluating the
performance of algorithm and also draw the diagram of server managing a mutual exclusion
token for a set processes. (09 Marks)

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What is an election algorithm? Explain ring based election algorithm. (07 Marks)
of 2
15CS654
Module-5
9 a. With neat diagram, explain distributed transaction and nested banking transaction. (08 Marks)

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b. Discuss voting phase and a completion phase of two-phase commit protocol. (04 Marks)
c. Discuss the operating in coordinator for nested transactions. (04 Marks)
OR
10 a. Illustrate locking in distributed transaction and also explain timestamp ordering currency
control and optimistic concurrency control. (10 Marks)

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b. Define deadlock. With a schematic figure, explain local and global wait?for graphs.
(06 Marks)
2 of 2
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