Operating Systems Concepts - 03

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

  • 1flexibility to the users in running lists of commands by simply collecting them in named batch command files
  • 2the command set being common across different hardware configurations
  • 3users can create system programs and run them as commands
  • 4the processing is much faster than would other-wise be the case when user defined commands are used
Answer:- 1
Explanation:-

Solution:
The advantage of a command processor running only built-in commands is the command set being common across different hardware configurations.

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

  • 1Interpreter generates an object program from the source program
  • 2Interpreter is a kind of translator
  • 3Interpreter analyses each source statement every time it is to be executed
  • 4All of the above
Answer:- 1
Explanation:-

No explanation is given for this question Let's Discuss on Board

03. Assembler is

  • 1a program that places programs into memory and prepares them for execution.
  • 2a program that automate the translation of assembly language into machine language.
  • 3a program that accepts a program written in a high level language and produces an object program.
  • 4is a program that appears to execute a source program as if it were machine language.
Answer:- 1
Explanation:-

No explanation is given for this question Let's Discuss on Board

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

  • 1priority is programmable
  • 2it is relatively easy to add more devices to the chain
  • 3the failure of one device may affect other devices on the chain
  • 4the number of control lines is independent of the number of devices on the chain
Answer:- 1
Explanation:-

No explanation is given for this question Let's Discuss on Board

05. Access time is the highest in the case of

  • 1floppy disk
  • 2cache
  • 3swapping devices
  • 4magnetic disk
Answer:- 1
Explanation:-

Solution:
Access time is the highest in the case of magnetic disk

06. Indicate which is a pre-emptive scheduling algorithm

  • 1Round-robin
  • 2Shortest-job-next
  • 3Priority-based
  • 4All of the above
Answer:- 1
Explanation:-

Solution:
Round-robin is a pre-emptive scheduling algorithm.

07. Which of the following might be used to convert high-level language instructions into machine language?

  • 1system software
  • 2applications software
  • 3an operating environment
  • 4an interpreter
Answer:- 1
Explanation:-

No explanation is given for this question Let's Discuss on Board

08. The term "operating system" means

  • 1a set of programs which controls computer working
  • 2the way a computer operator works
  • 3conversion of high level language into machine code
  • 4the way a floppy disk drive operates
Answer:- 1
Explanation:-

Solution:
The term "operating system" means a set of programs which controls computer working.

09. Object code

  • 1is ready to execute
  • 2is the output of compilers, but not assemblers
  • 3must be "loaded" before execution
  • 4must be rewritten before execution
Answer:- 1
Explanation:-

Solution:
Object code must be "loaded" before execution

10. Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?

  • 1two pass assembler
  • 2load-and-go assembler
  • 3macroprocessor
  • 4compiler
Answer:- 1
Explanation:-

No explanation is given for this question Let's Discuss on Board

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