Operating System Questions Asked in Placements - Set 13 - ObjectiveBooks

Operating System Questions Asked in Placements - Set 13

Practice Test: Question Set - 13


1. An instruction in a programming language that is replaced by a sequence of instructions prior to assembly or compiling is known as
    (A) Procedure name
    (B) Macro
    (C) Label
    (D) Literal

2. Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because
    (A) They are memory resident
    (B) They are initially stored on disk
    (C) They are available on magnetic tapes
    (D) They are partly in primary memory and partly on disk

3. Which of the following filename extension suggests that the file is a backup copy of another file?
    (A) TXT
    (B) COM
    (C) BAS
    (D) BAK

4. Software that measures, monitors, analyzes, and controls real-world events is called:
    (A) System software
    (B) Real-time software
    (C) Scientific software
    (D) Business software

5. The instruction register
    (A) Is a hardware memory device which denotes the location of the current instruction being executed
    (B) Is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory
    (C) Contains the address of the memory location that is to be read from or stored into
    (D) Contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write"

6. The dispatcher
    (A) Actually schedules the tasks into the processor
    (B) Puts tasks in I/O wait
    (C) Is always small and simple
    (D) Never changes task priorities

7. Which of the following statements is not true about the FORTRAN language?
    (A) FORTRAN is a high level language
    (B) A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine
    (C) FORTRAN is extensively used to write programs for performing scientific computations
    (D) All of the above

8. A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all requests in its path. This is a
    (A) First come first served
    (B) Shortest Seek Time First (SSTE)
    (C) Scan
    (D) FIFO

9. If special forms are needed for printing the output, the programmer specifies these forms through?
    (A) JCL
    (B) JPL
    (C) Utility programs
    (D) Load modules

10. A Processor
    (A) Is a device that performs a sequence of operations specified by instructions in memory
    (B) Is the device where information is stored
    (C) Is a sequence of instructions
    (D) Is typically characterized by interactive processing and time of the CPU's time to allow quick response to each user

11. A critical region is
    (A) A program segment that has not been proved bug-free
    (B) A program segment that often causes unexpected system crashes
    (C) A program segment where shared resources are accessed
    (D) One which is enclosed by a pair of P and V operations on semaphores

12. The advantage(s) inherent to using high level languages is (are)
    (A) Fewer people, less management and shorter transition in learning time
    (B) Improved debugging capability, and superior documentation
    (C) A greater degree of machine independence
    (D) All of the above

13. The Operating system manages
    (A) Memory
    (B) Processor
    (C) Disks and I/O devices
    (D) All of the above

14. What is the name given to the software which can be legally compiled and often used for free?
    (A) Shareware program
    (B) Public domain program
    (C) Firmware program
    (D) Mindware

15. A program
    (A) Is a device that performs a sequence of operations specified by instructions in memory
    (B) Is the device where information is stored
    (C) Is a sequence of instructions
    (D) Is typically characterized by interactive processing and time of the CPU's time to allow quick response to each user

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