MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Cognitive Radio knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which among the following options should replace the labels ‘A’, ‘B’, and ‘C’? |
| A. | Cross layer controller, Interface to network, Interface to node |
| B. | Cross layer controller, Interface to node, Interface to network |
| C. | Interface to node, Cross layer controller, Interface to network |
| D. | Interface to network, Cross layer controller, Interface to node |
| Answer» D. Interface to network, Cross layer controller, Interface to node | |
| 2. |
Re-routing with cross-layer design is more efficient due to the availability of sensing information. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Which among the following accounts for the additional routing costs generated for cross-layer information processing? |
| A. | Security |
| B. | Processing efficiency |
| C. | Latency |
| D. | Delay |
| Answer» C. Latency | |
| 4. |
Which among the following is not a challenge for spectrum sensing? |
| A. | Continuous sensing of spectrum |
| B. | Energy consumption |
| C. | Switching between sensing and transmission |
| D. | Limit sensing when a single radio is deployed |
| Answer» E. | |
| 5. |
Which among the following is true about the explicit congestion network? |
| A. | Explicit congestion notification is an extension of the data link layer and network layer |
| B. | Explicit congestion notification is an extension of transport and network layer |
| C. | Explicit congestion notification is an extension of transport and data link layer |
| D. | Explicit congestion notification is an extension of the physical and data link layer |
| Answer» D. Explicit congestion notification is an extension of the physical and data link layer | |
| 6. |
Which among the following may be employed to reduce performance degradation on a route with interference towards primary users? |
| A. | Multiple spectrum brokers |
| B. | Spatially distributed amplifiers |
| C. | Multi-spectrum interfaces |
| D. | Spatially distributed base-stations |
| Answer» D. Spatially distributed base-stations | |
| 7. |
Which among the following is not a cross-layer design challenge associated with the lower layer of the protocol stack? |
| A. | Topology configuration |
| B. | Interference mitigation |
| C. | Cooperative sensing |
| D. | Energy consumption |
| Answer» B. Interference mitigation | |
| 8. |
Which among the following is not a disadvantage ICMP protocol for direct inter layer communication? |
| A. | IP headers are included |
| B. | High protocol processing overhead |
| C. | Limited to request-respond action |
| D. | Loss of message packet cannot be identified |
| Answer» E. | |
| 9. |
Which among the following is implemented parallel to the protocol stack? |
| A. | Interlayer signaling pipe |
| B. | Direct inter layer communication |
| C. | Central cross-layer plane |
| D. | Cross talk |
| Answer» D. Cross talk | |
| 10. |
Which among the following is false about the CLASS approach? |
| A. | Eliminates insertion of signaling information |
| B. | Supports only unidirectional communication |
| C. | Reduce overhead |
| D. | Eliminate interception of packet at non-destination layer |
| Answer» C. Reduce overhead | |
| 11. |
What is the full form of CLASS approach? |
| A. | Cross-Layer Skipping Shortcuts |
| B. | Cross-Layer Super Shortcuts |
| C. | Cross-layer Support Shortcuts |
| D. | Cross-Layer Signalling Shortcuts |
| Answer» E. | |
| 12. |
Which among the following is a disadvantage of the signaling pipe? |
| A. | Lack of instant signaling |
| B. | Separate headers for non-adjacent layers |
| C. | Unreliable delivery of information |
| D. | Generation of interface between non-adjacent layers |
| Answer» B. Separate headers for non-adjacent layers | |