Q.1
Which among the following phenomenon require site specific propagation prediction?
  • a) Location awareness
  • b) Geographical awareness
  • c) RF environment
  • d) Position awareness
Q.2
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
Q.3
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
Q.4
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
Q.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
Q.6
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
Q.7
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
Q.8
Which among the following require radio transceiver database?
  • a) RF environment awareness
  • b) Location awareness
  • c) Power consumption awareness
  • d) Energy consumption awareness
Q.9
Which among the following techniques require geographic information database?
  • a) Policy awareness
  • b) Regulation awareness
  • c) Mobility and trajectory awareness
  • d) Background environment awareness
Q.10
Which among the following options should replace the labels ‘A’ and ‘B’ in the model implementation of radio environment map?
  • a) Learning, Local/Global radio environment map, Awareness, Decision
  • b) Learning, Awareness, Local/Global radio environment map, Decision
  • c) Awareness, Learning, Decision, Local/Global radio environment map
  • d) Awareness, Local/Global radio environment map, learning, decision
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