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    • ISRO CS 2008

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    Question 1

    With Round-Robin CPU scheduling in a time shared system

    • A

      using very large time slices (quantas) degenerates into FirstCome First served (FCFS) algorithm.

    • B

      using extremely small time slices improves performance

    • C

      using very small time slices degenerates into Last-In First-Out (LIFO) algorithm.

    • D

      using medium sized times slices leads to shortest Request time First (SRTF) algorithm

    Question 2

    Which of the following need not necessarily be saved on a context switch between processes?

    • A

      General purpose registers

    • B

      Translation look-aside buffer

    • C

      Program counter

    • D

      All of the above

    Question 3

    What is the name of the operating system that reads and reacts in terms of operating system?

    • A

      Batch system

    • B

      Quick response time

    • C

      real time system

    • D

      Time sharing system

    Question 4

    Which of the following need not necessarily be saved on a Context Switch between processes?

    • A

      General purpose registers

    • B

      Translation look-aside buffer

    • C

      Program counter

    • D

      Stack pointer

    Question 5

    The performance of Round Robin algorithm depends heavily on

    • A

      size of the process

    • B

      the I/O bursts of the process

    • C

      the CPU bursts of the process

    • D

      the size of the time quantum

    Question 6

    Fork is

    • A

      the creation of a new job

    • B

      the dispatching of a task

    • C

      increasing the priority of a task

    • D

      the creation of a new process

    Question 7

    Four jobs to be executed on a single processor system arrive at time 0 in the order A, B, C, D . Their burst CPU time requirements are 4, 1, 8, 1 time units respectively. The completion time of A under round robin scheduling with time slice of one time unit is

    • A

      10

    • B

      4

    • C

      8

    • D

      9

    Question 8

    Which of the following transmission media is not readily suitable to CSMA operation?

    • A

      Radio

    • B

      Optical fibers

    • C

      Coaxial cable

    • D

      Twisted pair

    Question 9

    In Ethernet, the source address field in the MAC frame is the _______ address.

    • A

      original sender's physical

    • B

      previous station's physical

    • C

      next destination's physical

    • D

      original sender's service port

    Question 10

    Which Project 802 standard provides for a collision-free protocol?

    • A

      802.2

    • B

      802.3

    • C

      802.5

    • D

      802.6

    Tags:
    ISRO

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