TRB-CS-VIP ONLINE COACHING CENTER (QUIZ-1)OPERATING SYSTEM

TRB-CS-Master online coaching center (QUIZ-8)Operating System

Quiz

 

1. Information in a memory that is no longer valid or wanted is known as
   1.   non-volatile
   2.   volatile
   3.   surplus
   4.   garbage
2. Which of the following filename extension suggests that the file is a backup copy of another file?
   1.   TXT
   2.   COM
   3.   BAS
   4.   BAK
3. Relocation bits used by relocating loader are specified (generated) by
   1.   Relocating loader itself
   2.   Linker
   3.   Assembler or translator
   4.   Macro processor
4. Nonmodifiable procedures are called
   1.   serially usable procedures
   2.   concurrent procedures
   3.   reentrant procedures
   4.   topdown procedures
5. . The instruction register
   1.   A. is a hardware memory device which denotes the location of the current instruction being executed.
   2.   is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
   3.   contains the address of the memory location that is to be read from or stored into.
   4.   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. Which of the following scheduling objectives should be applied to the following: the system should admit jobs to create a mix that will keep most devices busy
   1.   to be fair
   2.   to balance resource utilization
   3.   to obey priorities
   4.   to be predictable
7. Multiprogramming systems:
   1.   are easier to develop than single programming system
   2.   execute each job faster
   3.   execute more jobs in the same time period
   4.   are used only on large mainframe computers
8. In an absolute loading scheme, which loader function is accomplished by assembler.
   1.   Reallocation
   2.   Allocation
   3.   Linking
   4.   Loading
9. . A task in a blocked state
   1.   is executable
   2.   is executable
   3.   is executable
   4.   is executable
10. System maintenance:
    1.   is usually not necessary
    2.   is necessary on all systems, regardless of how good
    3.   is not required if the system is well written
    4.   always requires several programs
11. Which of the following statements is not true about the FORTRAN language?
    1.   FORTRAN is a high level language
    2.   A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine
    3.   FORTRAN is extensively used to write programs for performing scientific computations
    4.   All of the above
12. A linker
    
    1.   creates a load module
    2.   is not necessary with variable partitions
    3.   must be run after the loader
    4.   is not needed with a good compiler
13. . Uniform Symbols Table
    1.   contains all constants in the program
    2.   a permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure.
    3.   consists of a full or partial list of the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
    4.   a permanent table which lists all key words and special symbols of the language in symbolic form.
14. In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?
    1.   best fit
    2.   first fit
    3.   worst fit
    4.   worst fit
15. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register?
    1.   absolute mode
    2.   indirect mode
    3.   immediate mode
    4.   index mode
16. If special forms are needed for printing the output, the programmer specifies these forms through?
    1.   JCL
    2.   JPL
    3.   Utility programs
    4.   Load modules
17. Which policy replace a page if it is not in the favoured subset of a process's pages?
    1.   FIFO
    2.   LRU
    3.   LFU
    4.   Working set
18. Which of the following can be accesses by transfer vector approach of linking?
    1.   External data segments
    2.   External subroutines
    3.   Data located in other procedures
    4.   All of the above
19. Which of the following terms refers to the degree to which data in a database system are accurate and correct?
    
    1.   data security
    2.   data validity
    3.   data independence
    4.   data integrity
20. In analyzing the compilation of PL/I program, the term "Syntax analysis" is associated with
    1.   recognition of basic syntactic constructs through reductions.
    2.   recognition of basic elements and creation of uniform symbols
    3.   creation of more optional matrix.
    4.   use of macro processor to produce more optimal assembly code