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CSE :: Operating System Concepts

  1. Access time is the highest in the case of

  2. A.
    floppy disk
    B.
    cache
    C.
    swapping devices
    D.
    magnetic disk
    E.
    None of the above

  3. Which of the following is not a characteristic of a daisy chaining priority control scheme?

  4. A.
    priority is programmable
    B.
    it is relatively easy to add more devices to the chain
    C.
    the failure of one device may affect other devices on the chain
    D.
    the number of control lines is independent of the number of devices on the chain
    E.
    None of the above

  5. Assembler is

  6. A.
    a program that places programs into memory and prepares them for execution.
    B.
    a program that automate the translation of assembly language into machine language.
    C.
    a program that accepts a program written in a high level language and produces an object program.
    D.
    is a program that appears to execute a source program as if it were machine language.
    E.
    None of the above

  7. Indicate which, of the following, in not true about an interpreter

  8. A.
    Interpreter generates an object program from the source program
    B.
    Interpreter is a kind of translator
    C.
    Interpreter analyses each source statement every time it is to be executed
    D.
    All of the above
    E.
    None of the above

  9. Object modules generated by assemblers that contain unresolved external references are resolved for two or more object modules by a/an

  10. A.
    operating system
    B.
    loader
    C.
    linker
    D.
    compiler
    E.
    None of the above

  11. The advantage of a command processor running only built-in commands is:

  12. A.
    flexibility to the users in running lists of commands by simply collecting them in named batch command files
    B.
    the command set being common across different hardware configurations
    C.
    users can create system programs and run them as commands
    D.
    the processing is much faster than would other-wise be the case when user defined commands are used
    E.
    None of the above

  13. Under multiprograming, turnaround time for short jobs is usually _____ and that for long jobs is slightly _____.

  14. A.
    lengthened; shortened
    B.
    shortened; lengthened
    C.
    shortened; shortened
    D.
    lengthened; lengthened
    E.
    None of the above

  15. The most common systems security method is

  16. A.
    passwords
    B.
    encryption
    C.
    firewall
    D.
    all of the above
    E.
    None of the above

  17. Two basic types of operating systems are:

  18. A.
    sequential and direct
    B.
    batch and timesharing
    C.
    sequential and realtime
    D.
    batch and interactive.
    E.
    None of the above

  19. Daisy chain is a device for

  20. A.
    connecting a number of controllers to a device
    B.
    connecting a number of devices to a controller
    C.
    interconnecting a number of devices to a number of controllers
    D.
    all of the above
    E.
    None of the above