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 methods is associated with dynamic open spectrum channel protocol? |
| A. | Centralized inter-network spectrum sharing |
| B. | Distributed inter-network spectrum sharing |
| C. | Cooperative intra-network spectrum sharing |
| D. | Non-cooperative intra-network spectrum sharing |
| Answer» D. Non-cooperative intra-network spectrum sharing | |
| 2. |
The selection of a common control channel is difficult in centralized networks. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
Which among the following is applied to resolve contention between users in non-cooperative intra-network spectrum sharing? |
| A. | Random access techniques |
| B. | Multiple access techniques |
| C. | Spread spectrum techniques |
| D. | Multiplexing techniques |
| Answer» B. Multiple access techniques | |
| 4. |
What type of scheme is non-cooperative intra-network spectrum sharing? |
| A. | Spectrum centric |
| B. | Application centric |
| C. | Device centric |
| D. | Access centric |
| Answer» D. Access centric | |
| 5. |
How is dynamic spectrum access protocol advantageous for cooperative spectrum sharing? |
| A. | Central entity is used to lease the spectrum |
| B. | Sophisticated spectrum sharing algorithms are used to allocate the spectrum |
| C. | Distributed communication |
| D. | Reduced communication overhead |
| Answer» B. Sophisticated spectrum sharing algorithms are used to allocate the spectrum | |
| 6. |
Which among the following is not a function of the dynamic spectrum access protocol? |
| A. | Collision avoidance |
| B. | Resolve spectrum access contention |
| C. | Transparency for primary user |
| D. | Efficient dynamic spectrum allocation |
| Answer» C. Transparency for primary user | |
| 7. |
What is a local bargaining group? |
| A. | Local bargaining group is a set of users with a threshold limit guaranteed to provide minimum spectrum allocation to each user |
| B. | Local bargaining group is a set of users with a threshold limit that determines one particular user to operate the spectrum band |
| C. | Local bargaining group is a set of users with a threshold limit on the number of transmissions permissible over a certain period |
| D. | Local bargaining group is a set of users that compete for access of the spectrum band |
| Answer» B. Local bargaining group is a set of users with a threshold limit that determines one particular user to operate the spectrum band | |
| 8. |
Which among the following may be employed to select a common control channel in cooperative intra-network spectrum sharing? |
| A. | Regression |
| B. | Munging |
| C. | K-nearest neighbour |
| D. | Clustering |
| Answer» E. | |
| 9. |
Which among the following is a common control channel used by a radio to gain access to a system? |
| A. | Paging Channel |
| B. | Random Access Channel |
| C. | Access Grant Control Channel |
| D. | Cell Broadcast Channel |
| Answer» C. Access Grant Control Channel | |
| 10. |
What is the use of a common control channel? |
| A. | Transmission coordination |
| B. | Spectrum allocation |
| C. | Spectrum analysis |
| D. | Time of arrival synchronization |
| Answer» B. Spectrum allocation | |
| 11. |
What is the full form of DQSDR? |
| A. | Dynamic Quality of Service Distributed Reservation scheme |
| B. | Distributed Quality of Service Dynamic Reservation scheme |
| C. | Dynamic Quality of Service Distributed Resource scheme |
| D. | Distributed Quality of Service Dynamic Resource scheme |
| Answer» C. Dynamic Quality of Service Distributed Resource scheme | |
| 12. |
What is the basic unit of channel allocation? |
| A. | P frame |
| B. | Q frame |
| C. | R frame |
| D. | S frame |
| Answer» C. R frame | |