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- Question
The Memory Buffer Register (MBR)
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
- Correct Answer
- 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".
- 1. The part of machine level instruction, which tells the central processor what has to be done, is
Options- A. Operation code
- B. Address
- C. Locator
- D. Flip-Flop
- E. None of the above Discuss
- 2. Which of the following addressing modes, facilitates access to an operand whose location is defined relative to the beginning of the data structure in which it appears?
Options- A. ascending
- B. sorting
- C. index
- D. indirect
- E. None of the above Discuss
- 3. User-Friendly Systems are:
Options- A. required for object-oriented programming
- B. easy to develop
- C. common among traditional mainframe operating systems
- D. becoming more common
- E. None of the above Discuss
- 4. Thrashing
Options- A. is a natural consequence of virtual memory systems
- B. can always be avoided by swapping
- C. always occurs on large computers
- D. can be caused by poor paging algorithms
- E. None of the above Discuss
- 5. Fragmentation of the file system
Options- A. occurs only if the file system is used improperly
- B. can always be prevented
- C. can be temporarily removed by compaction
- D. is a characteristic of all file systems
- E. None of the above Discuss
- 6. What is the name of the operating system for the laptop computer called MacLite?
Options- A. Windows
- B. DOS
- C. MS-DOS
- D. OZ
- E. None of the above Discuss
- 7. Page stealing
Options- A. is a sign of an efficient system
- B. is taking page frames from other working sets
- C. should be the tuning goal
- D. is taking larger disk spaces for pages paged out
- E. None of the above Discuss
- 8. System generation:
Options- A. is always quite simple
- B. is always very difficult
- C. varies in difficulty between systems
- D. requires extensive tools to be understandable
- E. None of the above Discuss
- 9. Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?
Options- A. S = B - C
- B. IS A<10
- C. PRINT A
- D. DATA X,4Z
- E. None of the above Discuss
- 10. In analyzing the compilation of PL/I program, the term "Lexical analysis" 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
Operating Systems Concepts problems
Search Results
Correct Answer: Operation code
Correct Answer: index
Correct Answer: becoming more common
Correct Answer: can be caused by poor paging algorithms
Correct Answer: can be temporarily removed by compaction
Correct Answer: OZ
Correct Answer: is taking page frames from other working sets
Correct Answer: varies in difficulty between systems
Correct Answer: IS A<10
Correct Answer: recognition of basic elements and creation of uniform symbols
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