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    DS Model Question Paper UTU

    Uploaded by

    Himanshu Sharma

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd

    DS Model Question Paper UTU

    Uploaded by

    Himanshu Sharma
    76 views2 pages

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    © © All Rights Reserved

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    Copyright:

    © All Rights Reserved
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    Download as pdf or txt
    76 views2 pages

    DS Model Question Paper UTU

    Uploaded by

    Himanshu Sharma

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
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    Sub Code: CST-308 ROLL NO.

    Model Question Paper


    COURSE: M.TECH. BRANCH: COMPUTER SCIENCE ENGINEERING
    SEMESTER: 1 . SUBJECT: DISTRIBUTED SYSTEMS
    Duration: 3:00 hrs Max marks: 100

    Note: Attempt all questions.

    1. Attempt any four parts of the following. 5x4 = 20

    A. Describe client- server communication and group communication.


    B. Explain briefly the main characteristics of distributed system.
    C. Write short notes on processes and threads in distributed systems.
    D. Explain token based algorithms.
    E. Discuss the working of routing overlays.
    F. Explain in brief the communication between distributed objects.

    2. Attempt any two parts of the following. 10x2=20

    A. Explain Distributed system models with diagram.


    B. How is recovery important in distributed transactions?
    C. Discuss different security techniques available in distributed systems.

    3. Attempt any two parts of the following. 10x2=20

    A. Compare and contrast various methods in concurrency control.

    B. Discuss the working of 2 phase and 3 phase commit protocol along with their advantages
    and disadvantages.

    C. With the example of Java RMI code explain the concepts of events and notifications.

    4. Attempt any two parts of the following. 10x2=20

    A. What are Lamport’s logical clocks? Discuss the important conditions to be satisfied by
    Lamport’s logical clocks along with its advantages.

    B. Discuss a general model of public digital signature system. Also explain the role of public
    and private keys in cryptographic system.

    C. Describe mechanism of building distributed file system. Also explain data access actions in
    distributed file systems.

    5. Attempt any two parts of the following. 10x2=20

    A. Discuss mutual exclusion in distributed systems.


    B. What do you understand by Byzantine agreement problem? Discuss how consensus problem
    is different than other problems in distributed systems.

    C. Explain distributed transactions. Discuss the functionality of flat and nested distributed
    transactions.

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