MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 13 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. |
Cross layer approach is the combination of route selection and spectrum management. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which among the following is not a network layer attack? |
| A. | Network endo parasite attack |
| B. | Jamming attack |
| C. | Channel ecto parasite attack |
| D. | Low cost ripple effect attack |
| Answer» C. Channel ecto parasite attack | |
| 3. |
What is the best path from N1 to N3 in dynamic source routing? |
| A. | N1 – N4 – N2 – N3 |
| B. | N1 – N4 – N5 – N4 – N1 – N2 – N3 |
| C. | N1 – N4 – N5 – N3 |
| D. | N1 – N2 – N3View Answer |
| Answer» E. | |
| 4. |
Why is queue management required? |
| A. | Form a queue of xG users which require access for a particular channel in the licensed band |
| B. | Handle multiple interfaces |
| C. | Form a queue of xG users which require access for a particular channel in the unlicensed band |
| D. | Form a queue of xG users to forward information to spectrum broker |
| Answer» C. Form a queue of xG users which require access for a particular channel in the unlicensed band | |
| 5. |
Which among the following issues require channel-based models for analysis? |
| A. | Common control channel |
| B. | Spectrum knowledge |
| C. | Queue management |
| D. | Intermittent connectivity |
| Answer» E. | |
| 6. |
Why common channel control is required for routing? |
| A. | Transmission coordination |
| B. | Time of arrival synchronization |
| C. | Broadcasting |
| D. | Spectrum analysis |
| Answer» D. Spectrum analysis | |
| 7. |
Which among the following issues consider cost as a route metric? |
| A. | Spectrum knowledge |
| B. | Overhead |
| C. | Link failure |
| D. | Best path selection |
| Answer» E. | |
| 8. |
Which among the following is not a route metric of the routing issue mobility handling? |
| A. | Delay |
| B. | Interference |
| C. | Throughput |
| D. | Link stability |
| Answer» D. Link stability | |
| 9. |
Which among the following is false about the routing issue link failure? |
| A. | Interference is a route metric used to represent link failure |
| B. | Link capacity is a route metric used to represent link failure |
| C. | Link failure is caused by the displacement of an intermediary node |
| D. | Link failure is caused by the arrival of the primary user |
| Answer» C. Link failure is caused by the displacement of an intermediary node | |
| 10. |
What is the term used to define the additional data that has to be transferred other than the message during communication? |
| A. | Encoded bits |
| B. | Payload |
| C. | Support bits |
| D. | Overhead |
| Answer» E. | |
| 11. |
Which among the following is an issue for routing in cognitive radio networks? |
| A. | Spectrum sensing |
| B. | Power allocation |
| C. | Spectrum knowledge |
| D. | Spectrum characterization |
| Answer» D. Spectrum characterization | |
| 12. |
Which among the following is a not route metric? |
| A. | Power efficiency |
| B. | Interference |
| C. | Cost |
| D. | Data size |
| Answer» E. | |
| 13. |
Which among the following is not an upper layer issue? |
| A. | Channel sensing |
| B. | Routing |
| C. | Security |
| D. | Congestion control |
| Answer» B. Routing | |