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Operating system

Shradha Humane 9 questions

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Questions in this quiz (9)

  1. 1What is os?
    1. Ainterface betn hardware nd user
    2. Bis the software that controls the computer
    3. Cthere s no properly defn. but its a program that works behind an application program.
    4. Dits a resource manager
    5. Eits a system software
  2. 2Tasks performed by os
    1. Aacts as a manager to allocate resources
    2. Bprovides environment to make efficient use of hardware
    3. Cacts as a controller to schedule the processes
  3. 3Four components of os:
    hardware, application program,o s,user.
    1. ATrue
    2. BFalse
  4. 4Objectives of os
    1. Ahide details by abstraction
    2. Bto allocate resources to processes
    3. Cprovide an effective user interface
  5. 5Different types of operating system
    1. Asimple batch system:data are gathered for a particular period of time and grouped (or batch) before they are entered into a system without user intervention.
    2. Bunix
  6. 6Multiprogramming
    1. Athe execution of two or more different and independent programs by the same computer.
    2. Bits not defined as the execution of instructions from several programs simultaneously.
    3. CRather portion of one program is executed then a segment of another program and so on..
    4. Dincreases cpu utilization and cpu never Sits idle.
    5. ESPOOLing (simultaneous peripheral operations on-line) and buffering takes place.
  7. 7Time sharing systems
    1. Atime is managed for multiple users in an interactive way and at reasonable cost.
    2. Bprovides each user with smaller portion of total time shared
    3. Ceach user have a seperate program in memory
    4. Dshort executing programs are used in this type of os.
    5. Ecpu doesn't wait for operations it immediately switch to another.
    6. Fthese systems are more difficult and expensive to build
  8. 8Multiprocessor systems
    1. Amore than one processor placed in single cabinet which shares bus,clock,memory.
      thus,known as TIGHTLY COUPLED SYSTEMS.
    2. Bmaximum work is done in short period
    3. Cinstead of many single CPUs they can choose multiprocessor systems.
    4. Dsame data in memory is shared with multiprocessors instead of making its copies.
    5. Eprovides reliability
    6. Fone cpu runs a task other work as a back up
  9. 9Distributed system
    1. Amany independent computers are connected by a communication network nd transmission of resources takes among these computers
    2. Bsharing of information
    3. Cresource sharing
    4. Dshorter response time and higher throughput
    5. Ehigher reliability
    6. Fextensibility and incremental growth
    7. Gbetter flexibility in meeting user's needs
    8. Hthese systems are complexed
    9. Ispecial security measures are needed to protect the widely distributed shared resources against violation and privacy
    10. Jspecial software must be needed to handle loss of messages during transmission.

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Quiz on Operating system , created by Shradha Humane on 24/02/2017.
Language
English
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