Q.1
What is a non-handoff?
  • a) xG user selects a channel from the unlicensed band
  • b) xG user selects a channel in the licensed spectrum band
  • c) xG user removes another user in the unlicensed band
  • d) xG user eliminates a primary user in the unlicensed band
Q.2
What is reactive handoff?
  • a) xG user performs sensing and sensing is performed before the triggering event
  • b) xG user performs sensing and sensing is performed after triggering event
  • c) Primary user performs sensing and sensing is performed before the triggering event
  • d) Primary user performs sensing and sensing is performed after triggering event
Q.3
Which among the following is a disadvantage of proactive handoff?
  • a) High latency
  • b) Increased number of handoffs
  • c) Prior planning
  • d) Unused saved channels
Q.4
Which among the following is a challenge for spectrum mobility in the time domain?
  • a) QoS maintenance
  • b) Cooperative sensing
  • c) Interference temperature measurement
  • d) Reconfiguration
Q.5
Which among the following should be adapted in spectrum mobility management?
  • a) Single-layer approach
  • b) Double layer approach
  • c) Cross-layer approach
  • d) Alternate layer approach
Q.6
Which among the following method is suitable for delay-sensitive application?
  • a) Reactive handoff
  • b) Proactive handoff
  • c) Non-handoff
  • d) High handoff
Q.7
Which among the following is influenced by spectrum switching time?
  • a) Transmit time
  • b) Access time
  • c) Recovery time
  • d) Sensing time
Q.8
Why is inter-cell handoff required?
  • a) To support spectrum mobility in time domain
  • b) To support spectrum mobility in frequency domain
  • c) To support spectrum mobility in the phase domain
  • d) To support spectrum mobility in space domain
Q.9
Which among the following is not a challenge of connection management?
  • a) Estimation of accurate latency
  • b) Reduction of delay
  • c) Reduction of loss
  • d) Maintenance of multiple handoffs
Q.10
Which among the following is responsible for recovering the routing table in case of route break?
  • a) xG user
  • b) xG base-station
  • c) Primary base-station
  • d) Spectrum broker
Q.11
Hybrid handoff is a combination of proactive handoff and reactive handoff.
  • a) True
  • b) False
Q.12
Which among the following should replace the labels ‘A’ and ‘B’?
  • a) Spectrum management and connection management
  • b) Spectrum mobility and connection management
  • c) Connection management and spectrum handoff
  • d) Spectrum mobility and spectrum handoff
0 h : 0 m : 1 s