Operating Systems Concepts problems
- 1. The practice of "bundling" refers to
Options- A. selling computers alone
- B. selling peripheral devices with computer
- C. selling software to run on computers
- D. giving away software with a computer purchase
- E. None of the above Discuss
Correct Answer: giving away software with a computer purchase
- 2. Indicate which is a pre-emptive scheduling algorithm
Options- A. Round-robin
- B. Shortest-job-next
- C. Priority-based
- D. All of the above
- E. None of the above Discuss
Correct Answer: Round-robin
- 3. Access time is the highest in the case of
Options- A. floppy disk
- B. cache
- C. swapping devices
- D. magnetic disk
- E. None of the above Discuss
Correct Answer: magnetic disk
- 4. In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.
Options- A. absolute mode
- B. immediate mode
- C. index mode
- D. modulus mode
- E. None of the above Discuss
Correct Answer: absolute mode
- 5. A base register table
Options- 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.
- E. None of the above Discuss
Correct Answer: is used to remember which of the general-purpose registers are currently available as base registers, and what base addresses they contain.
- 6. Capacity planning
Options- A. requires detailed system performance information
- B. is independent of the operating system
- C. does not depend on the monitoring tools available
- D. is not needed in small installations
- E. None of the above Discuss
Correct Answer: is independent of the operating system
- 7. Indicate which, of the following, is not true about Nassi-Shneiderman charts
Options- A. These charts are type of graphical design tool
- B. These charts cannot represent CASE constructs
- C. These charts can represent three fundamental control structures
- D. All of the above
- E. None of the above Discuss
Correct Answer: These charts cannot represent CASE constructs
- 8. The command interpreter
Options- A. is usually the primary user interface
- B. requires fixed format commands
- C. is menu drive
- D. is quite different from the SCL interpreter
- E. None of the above Discuss
Correct Answer: is usually the primary user interface
- 9. A critical region is
Options- A. a program segment that has not been proved bug-free
- B. a program segment that often causes unexpected system crashes
- C. a program segment where shared resources are accessed
- D. one which is enclosed by a pair of P and V operations on semaphores
- E. none is the above Discuss
Correct Answer: one which is enclosed by a pair of P and V operations on semaphores
- 10. Which of the following statements is false?
Options- A. a process scheduling algorithm is preemptive if the CPU can be forcibly removed from a process
- B. time sharing systems generally use preemptive CPU scheduling
- C. response time are more predictable in preemptive systems than in non preemptive systems
- D. real time systems generally use non-preemptive CPU scheduling
- E. None of the above Discuss
Correct Answer: real time systems generally use non-preemptive CPU scheduling
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