MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IF_THE_PAGING_UNIT_IS_DISABLED,_THEN_THE_LINEAR_ADDRESS_IS_USED_AS?$ |
| A. | effective address |
| B. | physical address |
| C. | segment base address |
| D. | none of the mentioned |
| Answer» C. segment base address | |
| 2. |
For a single task in protected mode, the 80386 can address the virtual memory of$ |
| A. | 32 GB |
| B. | 64 MB |
| C. | 32 TB |
| D. | 64 TB |
| Answer» E. | |
| 3. |
The paging unit is enabled only in$ |
| A. | virtual mode |
| B. | addressing mode |
| C. | protected mode |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
If the paging unit is enabled, then it converts a linear address int? |
| A. | effective address |
| B. | physical address |
| C. | segment base address |
| D. | none of the mentioned |
| Answer» C. segment base address | |
| 5. |
The linear address is calculated by |
| A. | effective address + segment base address |
| B. | effective address – segment base address |
| C. | effective address + physical address |
| D. | effective address – physical address |
| Answer» B. effective address ‚Äö√Ñ√∂‚àö√ë‚àö¬® segment base address | |
| 6. |
The selectors contain the segment’s$ |
| A. | segment limit |
| B. | base address |
| C. | access rights byte |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
The operation that can be performed on segments in 80386 real mode is |
| A. | read |
| B. | write |
| C. | execute |
| D. | all of the mentioned |
| Answer» E. | |
| 8. |
The segments in 80386 real mode are |
| A. | overlapped |
| B. | non-overlapped |
| C. | either overlapped or non-overlapped |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
To form a physical memory address, appropriate segment register contents are |
| A. | shifted by left by 4 positions |
| B. | added to 16-bit offset address |
| C. | operated using one of addressing modes |
| D. | all of the mentioned |
| Answer» E. | |
| 10. |
The unit that is disabled in real address mode is |
| A. | central processing unit |
| B. | memory management unit |
| C. | paging unit |
| D. | bus control unit |
| Answer» D. bus control unit | |
| 11. |
The instructions available in the 80386 that are not available in its real address mode is |
| A. | addressing techniques |
| B. | instructions for protected address mode |
| C. | instructions for interrupt handling |
| D. | all of the mentioned |
| Answer» C. instructions for interrupt handling | |