Operating Systems Coding Questions - Set 08 - ObjectiveBooks

Operating Systems Coding Questions - Set 08

Practice Test: Question Set - 08


1. Terminal Table
    (A) Contains all constants in the program
    (B) A permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
    (C) 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
    (D) A permanent table which lists all key words and special symbols of the language in symbolic form

2. Which of the following functions is(are) performed by the loader
    (A) Allocate space in memory for the programs and resolve symbolic references between object decks
    (B) Adjust all address dependent locations, such as address constants, to correspond to the allocated space
    (C) Physically place the machine instructions and data into memory
    (D) All of the above

3. When a computer is first turned on or restarted, a special type of absolute loader is executed, called a
    (A) "Compile and Go" loader
    (B) Boot loader
    (C) Bootstrap loader
    (D) Relating loader

4. The operating system of a computer serves as a software interface between the user and
    (A) Hardware
    (B) Peripheral
    (C) Memory
    (D) Screen

5. Assembly code data base is associated with
    (A) Assembly language version of the program which is created by the code generation phase and is input to the assembly phase
    (B) A permanent table of decision rules in the form of patterns for matching with the uniform symbol table to discover syntactic structure
    (C) Consists of a full or partial list or the token's as they appear in the program. Created by Lexical analysis and used for syntax analysis and interpretation
    (D) A permanent table which lists all key words and special symbols of the language in symbolic form

6. Job Control Language (JCL) statements are used to
    (A) Read the input from the slow-speed card reader to the high-speed magnetic disk
    (B) Specify, to the operating system, the beginning and end of a job in a batch
    (C) Allocate the CPU to a job
    (D) All of the above

7. In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.
    (A) Absolute mode
    (B) Immediate mode
    (C) Index mode
    (D) Modulus mode

8. Bug means
    (A) A logical error in a program
    (B) A difficult syntax error in a program
    (C) Documenting programs using an efficient documentation tool
    (D) All of the above

9. In analyzing the compilation of PL/I program, the description "resolving symbolic address (labels) and generating machine language" is associated with
    (A) Assembly and output
    (B) Code generation
    (C) Storage assignment
    (D) Syntax analysis

10. The total time to prepare a disk drive mechanism for a block of data to be read from it is
    (A) Latency
    (B) Latency plus transmission time
    (C) Latency plus seek time
    (D) Latency plus seek time plus transmission time

11. Which of the following systems software does the job of merging the records from two files into one?
    (A) Security software
    (B) Utility program
    (C) Networking software
    (D) Documentation system

12. Which, of the following checks, cannot be carried out on the input data to a system?
    (A) Consistency check
    (B) Syntax check
    (C) Range check
    (D) All of the above

13. Object code
    (A) Is ready to execute
    (B) Is the output of compilers, but not assemblers
    (C) Must be "loaded" before execution
    (D) Must be rewritten before execution

14. Thrashing can be avoided if
    (A) The pages, belonging to the working set of the programs, are in main memory
    (B) The speed of CPU is increased
    (C) The speed of I/O processor is increased
    (D) All of the above

15. The system/370 assembler language
    (A) Allows the programmer to write base registers and displacements explicitly in the source program
    (B) Is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain
    (C) Allows multiple programs to reside in separate areas of core at the same time
    (D) Is a term that refers to the control programs of an operating system

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