Operating Systems Concepts problems
- 1. Uniform Symbols Table
Options- 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.
- E. None of the above Discuss
Correct Answer: 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
- 2. Backups should be done
Options- A. daily for most installations
- B. weekly for most installations
- C. as several image copies, followed by an incremental
- D. as several incrementals, followed by an image copy
- E. None of the above Discuss
Correct Answer: as several incrementals, followed by an image copy
- 3. A task in a blocked state
Options- A. is executable
- B. is running
- C. must still be placed in the run queues
- D. is waiting for same temporarily unavailable resources
- E. None of the above Discuss
Correct Answer: is waiting for same temporarily unavailable resources
- 4. Which of the following capabilities is required for a system program to execute more than one program at a time?
Options- A. word processing
- B. compiling
- C. virtual memory
- D. multitasking
- E. None of the above Discuss
Correct Answer: multitasking
- 5. If special forms are needed for printing the output, the programmer specifies these forms through?
Options- A. JCL
- B. JPL
- C. Utility programs
- D. Load modules
- E. None of the above Discuss
Correct Answer: JCL
- 6. Which of the following is true about pseudocode
Options- A. A machine language
- B. An assembly language
- C. A high-level language
- D. All of the above
- E. None of the above Discuss
Correct Answer: None of the above
- 7. Relocation bits used by relocating loader are specified (generated) by
Options- A. Relocating loader itself
- B. Linker
- C. Assembler or translator
- D. Macro processor
- E. None of the above Discuss
Correct Answer: Linker
- 8. 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
Options- A. to be fair
- B. to balance resource utilization
- C. to obey priorities
- D. to be predictable
- E. None of the above Discuss
Correct Answer: to balance resource utilization
- 9. Which of the following terms refers to the degree to which data in a database system are accurate and correct?
Options- A. data security
- B. data validity
- C. data independence
- D. data integrity
- E. None of the above Discuss
Correct Answer: data integrity
- 10. In which of the storage placement strategies a program is placed in the smallest available hole in the main memory?
Options- A. best fit
- B. first fit
- C. worst fit
- D. buddy
- E. None of the above Discuss
Correct Answer: best fit
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