Operating Systems Concepts problems
- 1. The Memory Address Register
Options- A. is a hardware memory device which denotes the location of the current instruction being executed.
- B. is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
- C. contains the address of the memory location that is to be read from or stored into.
- D. contains a copy of the designated memory location specified by the MAR after a "read" or the new contents of the memory prior to a "write".
- E. None of the above Discuss
Correct Answer: contains the address of the memory location that is to be read from or stored into.
- 2. Bug means
Options- 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
- E. None of the above Discuss
Correct Answer: A logical error in a program
- 3. While working with MS-DOS, which command will you use to transfer a specific file from one disk to another?
Options- A. DISKCOPY
- B. COPY
- C. RENAME
- D. FORMAT
- E. None of the above Discuss
Correct Answer: COPY
- 4. Which of the following systems software does the job of merging the records from two files into one?
Options- A. Security software
- B. Utility program
- C. Networking software
- D. Documentation system
- E. None of the above Discuss
Correct Answer: Utility program
- 5. A non-relocatable 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: 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.
- 6. The register or main memory location which contains the effective address of the operand is known as
Options- A. pointer
- B. indexed register
- C. special location
- D. scratch pad
- E. None of the above Discuss
Correct Answer: pointer
- 7. In virtual memory systems, Dynamic address translation
Options- A. is the hardware necessary to implement paging
- B. stores pages at a specific location on disk
- C. is useless when swapping is used
- D. is part of the operating system paging algorithm
- E. None of the above Discuss
Correct Answer: is the hardware necessary to implement paging
- 8. In which addressing mode the contents of a register specified in the instruction are first decremented, and then these contents are used as the effective address of the operands?
Options- A. index addressing
- B. indirect addressing
- C. auto increment
- D. auto decrement
- E. None of the above Discuss
Correct Answer: auto decrement
- 9. Assembly code data base is associated with
Options- 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.
- E. None of the above Discuss
Correct Answer: assembly language version of the program which is created by the code generation phase and is input to the assembly phase.
- 10. Which of the following are(is) Language Processor(s)
Options- A. assembles
- B. compilers
- C. interpreters
- D. All of the above
- E. None of the above Discuss
Correct Answer: All of the above
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