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. |
xG networks allow usage of spectrum band without a fixed infrastructure. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
Which among the following is not true about Mobile Virtual Network Operator? |
| A. | MVNO owns wireless infrastructure |
| B. | MVNO purchases infrastructure at retail price |
| C. | MVNO is a form of leased network |
| D. | MVNO might operate with mobile virtual network enabler |
| Answer» E. | |
| 3. |
Which among the following is a requirement of a cognitive mesh network? |
| A. | Large spectrum |
| B. | Quality of service |
| C. | Security |
| D. | Effective modulation scheme |
| Answer» B. Quality of service | |
| 4. |
Which among the following is a requirement of emergency networks? |
| A. | Quality of service |
| B. | Determine of charges for usage |
| C. | Minimum latency |
| D. | Parsing incoming information |
| Answer» D. Parsing incoming information | |
| 5. |
Which among the following may not be achieved by using xG networks for military applications? |
| A. | Select intermediate frequency bandwidth |
| B. | Improve security |
| C. | Select compatible modulation scheme |
| D. | Reduce interference |
| Answer» E. | |
| 6. |
Which among the following is required for effective use of spectrum in an unlicensed spectrum band? |
| A. | Spectrum sharing algorithms |
| B. | Scheduling algorithms |
| C. | Planning algorithms |
| D. | Decision-making algorithms |
| Answer» B. Scheduling algorithms | |
| 7. |
Which among the following is true about xG users in an unlicensed spectrum band? |
| A. | xG user has equal rights to access the spectrum |
| B. | xG user vacate the spectrum band upon arrival of the primary user |
| C. | xG user vacate the spectrum band upon arrival of another xG user |
| D. | xG users compete for the position of primary user |
| Answer» B. xG user vacate the spectrum band upon arrival of the primary user | |
| 8. |
Which among the following relies on efficient allocation of spectrum? |
| A. | Effective multiplexing |
| B. | Effective modulation |
| C. | Capacity of open spectrum access |
| D. | Diversity |
| Answer» D. Diversity | |
| 9. |
What is the terminology used to refer to the transfer of users from one spectrum to another spectrum? |
| A. | Spectrum routing |
| B. | Mobile routing |
| C. | Mobile handoff |
| D. | Spectrum handoff |
| Answer» E. | |
| 10. |
Which among the following affects the channel capacity of spectrum holes? |
| A. | Interference at nearby primary users |
| B. | Interference at nearby xG users |
| C. | Distance between the xG user and primary base-station |
| D. | Distance between the xG user and xG base-station |
| Answer» B. Interference at nearby xG users | |
| 11. |
Which among the following is an additional function carried out xG users in the licensed band? |
| A. | Route primary users |
| B. | Detection of the presence of primary users |
| C. | Detection of the presence of secondary users |
| D. | Route secondary users |
| Answer» C. Detection of the presence of secondary users | |
| 12. |
What is the function of the xG network in the licensed band? |
| A. | Exploit unused spectrum holes |
| B. | Route xG users |
| C. | Route primary users |
| D. | Manage information for primary users |
| Answer» B. Route xG users | |