MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Organization knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
THE_BUS_BUSY_LINE_IS_MADE_OF_________?$ |
| A. | Open-drain circuit |
| B. | Open-collector circuit |
| C. | EX-Or circuit |
| D. | Nor circuit |
| Answer» C. EX-Or circuit | |
| 2. |
The BUS busy line is used$ |
| A. | To indicate the processor is busy |
| B. | To indicate that the BUS master is busy |
| C. | To indicate the BUS is already allocated |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 3. |
After the device completes its operation _____ assumes the control of the BUS.$ |
| A. | Another device |
| B. | Processor |
| C. | Controller |
| D. | None of the mentioned |
| Answer» C. Controller | |
| 4. |
If two devices A and B contesting for the BUS have ID’s 5 and 6 respectively, which device gets the BUS based on the Distributed arbitration$ |
| A. | Device A |
| B. | Device B |
| C. | Insufficient information |
| D. | None of the mentioned |
| Answer» C. Insufficient information | |
| 5. |
How is a device selected in Distributed arbitration? |
| A. | By NANDing the signals passed on all the 4 lines |
| B. | By ANDing the signals passed on all the 4 lines |
| C. | By ORing the signals passed on all the 4 lines |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 6. |
In Distributed arbitration, the device requesting the BUS ______ |
| A. | Asserts the Start arbitration signal |
| B. | Sends an interrupt signal |
| C. | Sends an acknowledge signal |
| D. | None of the mentioned |
| Answer» B. Sends an interrupt signal | |
| 7. |
Distributed arbitration makes use of ______ |
| A. | BUS master |
| B. | Processor |
| C. | Arbitrator |
| D. | 4-bit ID |
| Answer» E. | |
| 8. |
Once the BUS is granted to a device __________? |
| A. | It activates the BUS busy line |
| B. | Performs the required operation |
| C. | Raises an interrupt |
| D. | All of the mentioned |
| Answer» B. Performs the required operation | |
| 9. |
In Centralised Arbitration ______ is/are is the BUS master |
| A. | Processor |
| B. | DMA controller |
| C. | Device |
| D. | Both Processor and DMA controller |
| Answer» E. | |
| 10. |
When the processor receives the request from a device, it responds by sending _____ |
| A. | Acknowledge signal |
| B. | BUS grant signal |
| C. | Response signal |
| D. | None of the mentioned |
| Answer» C. Response signal | |
| 11. |
The Centralised BUS arbitration is similar to ______ interrupt circuit |
| A. | Priority |
| B. | Parallel |
| C. | Single |
| D. | Daisy chain |
| Answer» E. | |
| 12. |
The circuit used for the request line is a _________ |
| A. | Open-collector |
| B. | EX-OR circuit |
| C. | Open-drain |
| D. | Nand circuit |
| Answer» D. Nand circuit | |
| 13. |
______ BUS arbitration approach uses the involvement of the processor |
| A. | Centralised arbitration |
| B. | Distributed arbitration |
| C. | Random arbitration |
| D. | All of the mentioned |
| Answer» B. Distributed arbitration | |
| 14. |
The device which is allowed to initiate data transfers on the BUS at any time is called _____ |
| A. | BUS master |
| B. | Processor |
| C. | BUS arbitrator |
| D. | Controller |
| Answer» B. Processor | |
| 15. |
To resolve the clash over the access of the system BUS we use ______ |
| A. | Multiple BUS |
| B. | BUS arbitrator |
| C. | Priority access |
| D. | None of the mentioned |
| Answer» C. Priority access | |