Operating Systems Competitive Questions - Set 09 - ObjectiveBooks

Operating Systems Competitive Questions - Set 09

Practice Test: Question Set - 09


1. Under virtual storage,
    (A) A single program is processed by two or more CPUs
    (B) Two or more programs are stored concurrently in primary storage
    (C) Only the active pages of a program are stored in primary storage
    (D) Inter-program interference may occur

2. Addressing structure
    (A) Defines the fundamental method of determining effective operand addresses
    (B) Are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing
    (C) Performs indicated operations on two fast registers of the machine and leave the result in one of the registers
    (D) None of the above

3. What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?
    (A) 8
    (B) 1
    (C) 16
    (D) None of the above

4. Part of a program where the shared memory is accessed and which should be executed invisibly, is called
    (A) Semaphores
    (B) Directory
    (C) Critical section
    (D) Mutual exclusion

5. Which of the following rules out the use of GO TO?
    (A) Flowchart
    (B) HIPO-DIAGRAMS
    (C) Nassi-Shneiderman diagram
    (D) All of the above

6. In an absolute loading scheme, which loader function is accomplished by loader
    (A) Reallocation
    (B) Allocation
    (C) Linking
    (D) Loading

7. The term "operating system" means
    (A) A set of programs which controls computer working
    (B) The way a computer operator works
    (C) Conversion of high level language into machine code
    (D) The way a floppy disk drive operates

8. Which of the following are (is) Language Processor(s)
    (A) Assembles
    (B) Compilers
    (C) Interpreters
    (D) All of the above

9. Feed back queue
    (A) Are very easy to implement
    (B) Dispatch tasks according to execution characteristics
    (C) Are used to favor real-time tasks
    (D) Require manual intervention to implement properly

10. File record length
    (A) Should always be fixed
    (B) Should always be variable
    (C) Depends upon the size of the file
    (D) Should be chosen to match the data characteristics

11. Which of the following statements is false?
    (A) The technique of storage compaction involves moving all occupied areas of storage to one end or other of main storage
    (B) Compaction does not involve relocation of programs
    (C) Compaction is also known as garbage collection
    (D) The system must stop everything while it performs the compaction

12. What is the name given to all the programs inside the computer with makes it usable?
    (A) Application software
    (B) System software
    (C) Firm ware
    (D) Shareware

13. Object modules generated by assemblers that contain unresolved external references are resolved for two or more object modules by a/an
    (A) Operating system
    (B) Loader
    (C) Linker
    (D) Compiler

14. Fragmentation of the file system
    (A) Occurs only if the file system is used improperly
    (B) Can always be prevented
    (C) Can be temporarily removed by compaction
    (D) Is a characteristic of all file systems

15. Which of the following is true for machine language?
    (A) Repeated execution of program segments
    (B) Depicting flow of data in a system
    (C) A sequence of instructions which, when followed properly, solves a problem
    (D) The language which communicates with the computer using only the binary digits 1 and 0

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