MCQOPTIONS
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MCQOPTIONS
This section includes 9 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 techniques require geographic information database? |
| A. | Policy awareness |
| B. | Regulation awareness |
| C. | Mobility and trajectory awareness |
| D. | Background environment awareness |
| Answer» D. Background environment awareness | |
| 2. |
Which among the following require radio transceiver database? |
| A. | RF environment awareness |
| B. | Location awareness |
| C. | Power consumption awareness |
| D. | Energy consumption awareness |
| Answer» B. Location awareness | |
| 3. |
Which among the following statements is false about the introduction of a cognitive radio in a wireless regional area network? |
| A. | Availability of spectrum access information to the secondary user |
| B. | Availability of spectrum access information to the primary user |
| C. | Knowledge of antenna height |
| D. | Usage pattern of wireless regional area network |
| Answer» C. Knowledge of antenna height | |
| 4. |
Which among the following statements is false about the radio environment map on a network level? |
| A. | Radio environment map is compatible with hybrid node technology |
| B. | Radio environment map introduces network intelligence |
| C. | Radio environment map merges into the core of cognitive radio architecture |
| D. | Radio environment map is dependent on network topology |
| Answer» E. | |
| 5. |
Which among the following is termed as a local radio environment map? |
| A. | Wide area network level |
| B. | Hop to hop level |
| C. | User equipment terminal |
| D. | Local area network level |
| Answer» D. Local area network level | |
| 6. |
Which among the following problems could be overcome by spreading gain? |
| A. | Delay due to fading |
| B. | Delay due to multipath |
| C. | Call drop due to multipath |
| D. | Call drop due to fading |
| Answer» D. Call drop due to fading | |
| 7. |
Which among the following is an approach that can be applied to overcome the effect of channel fading? |
| A. | Discarding particular channel from use |
| B. | Transmission and reception during fixed time slots |
| C. | Selection of appropriate waveform |
| D. | Compromising quality of service |
| Answer» D. Compromising quality of service | |
| 8. |
Which among the following is a common problem incorporated by a channel on cognitive radios? |
| A. | Switching delay |
| B. | Transmitter uncertainty |
| C. | Doppler shift |
| D. | Receiver uncertainty |
| Answer» D. Receiver uncertainty | |
| 9. |
Which among the following phenomenon require site specific propagation prediction? |
| A. | Location awareness |
| B. | Geographical awareness |
| C. | RF environment |
| D. | Position awareness |
| Answer» C. RF environment | |