Operating Systems Concepts problems
- 1. In analyzing the compilation of PL/I program, the term "Machine independent optimization" is associated with
Options- A. recognition of basic syntactic constructs through reductions.
- B. recognition of basic elements and creation of uniform symbols.
- C. creation of more optional matrix.
- D. use of macro processor to produce more optimal assembly code
- E. None of the above Discuss
Correct Answer: creation of more optional matrix.
- 2. A hardware device that is capable of executing a sequence of instructions, is known as
Options- A. CPU
- B. ALU
- C. CU
- D. Processor
- E. None of the above Discuss
Correct Answer: Processor
- 3. Which, of the following, is true for testing and debugging?
Options- A. Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program
- B. Testing detects the syntax errors in the program while debugging corrects those errors in the program
- C. Testing and debugging indicate the same thing
- D. All of the above
- E. None of the above Discuss
Correct Answer: Testing checks for logical errors in the programs, while debugging is a process of correcting those errors in the program
- 4. In which addressing mode, the effective address of the operand is generated by adding a constant value to the contents of register?
Options- A. absolute mode
- B. indirect mode
- C. immediate mode
- D. index mode
- E. None of the above Discuss
Correct Answer: index mode
- 5. A compiler for a high-level language that runs on one machine and produces code for a different machine is called is
Options- A. optimizing compiler
- B. one pass compiler
- C. cross compiler
- D. multipass compiler
- E. None of the above Discuss
Correct Answer: cross compiler
- 6. A self-relocating program is one which
Options- A. cannot be made to execute in any area of storage other than the one designated for it at the time of its coding or translation.
- B. consists of a program and relevant information for its relocation.
- C. can itself performs the relocation of its address-sensitive portions.
- D. All of the above
- E. None of the above Discuss
Correct Answer: can itself performs the relocation of its address-sensitive portions.
- 7. The higher versions of the operating systems are so written that programs designed for earlier versions can still be run. What is it called?
Options- A. Upgradability
- B. Upward mobility
- C. Universality
- D. Upward compatibility
- E. None of the above Discuss
Correct Answer: Upward compatibility
- 8. The Operating system manages
Options- A. Memory
- B. Processor
- C. Disks and I/O devices
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
- 9. Multiprogramming systems:
Options- A. are easier to develop than single programming system
- B. execute each job faster
- C. execute more jobs in the same time period
- D. are used only on large mainframe computers
- E. None of the above Discuss
Correct Answer: execute more jobs in the same time period
- 10. Which of the following statements is not true about the FORTRAN language?
Options- 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
- E. None of the above Discuss
Correct Answer: A FORTRAN program, written for the IBM-PC, is totally different from a FORTRAN program written for execution on the SUN machine
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