MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Microprocessors knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
IN_THE_APPLICATION_WHERE_ALL_THE_INTERRUPTING_DEVICES_ARE_OF_EQUAL_PRIORITY,_THE_MODE_USED_IS?$ |
| A. | Automatic rotation |
| B. | Automatic EOI mode |
| C. | Specific rotation |
| D. | EOI |
| Answer» B. Automatic EOI mode | |
| 2. |
When non-specific EOI command is issued to 8259A it will automaticall? |
| A. | set the ISR |
| B. | reset the ISR |
| C. | set the INTR |
| D. | reset the INTR |
| Answer» C. set the INTR | |
| 3. |
Once the ICW1 is loaded, then the initialization procedure involves |
| A. | edge sense circuit is reset |
| B. | IMR is cleared |
| C. | slave mode address is set to 7 |
| D. | all of the mentioned |
| Answer» E. | |
| 4. |
When the PS(active low)/EN(active low) pin of 8259A used in buffered mode, then it can be used as a |
| A. | input to designate chip is master or slave |
| B. | buffer enable |
| C. | buffer disable |
| D. | none |
| Answer» C. buffer disable | |
| 5. |
In a cascaded mode, the number of vectored interrupts provided by 8259A is |
| A. | 4 |
| B. | 8 |
| C. | 16 |
| D. | 64 |
| Answer» E. | |
| 6. |
The interrupt control logic |
| A. | manages interrupts |
| B. | manages interrupt acknowledge signals |
| C. | accepts interrupt acknowledge signal |
| D. | all of the mentioned |
| Answer» E. | |
| 7. |
The register that stores the bits required to mask the interrupt inputs is |
| A. | In-service register |
| B. | Priority resolver |
| C. | Interrupt Mask register |
| D. | None |
| Answer» D. None | |
| 8. |
The register that stores all the interrupt requests in it in order to serve them one by one on a priority basis is |
| A. | Interrupt Request Register |
| B. | In-Service Register |
| C. | Priority resolver |
| D. | Interrupt Mask Register |
| Answer» B. In-Service Register | |
| 9. |
The number of hardware interrupts that the processor 8085 consists of is |
| A. | 1 |
| B. | 3 |
| C. | 5 |
| D. | 7 |
| Answer» D. 7 | |