Top 350+ Solved Wireless Sensor Networks (WSN) MCQ Questions Answer
Q. To avoid collisions on wireless networks, ________was invented.
a. csma/ca
b. csma/cd
c. either (a) or (b)
d. both (a) and (b)
Q. In _______, collisions are avoided through the use of three strategies: the interframe space, the contention window, and acknowledgments.
a. csma/ca
b. csma/cd
c. either (a) or (b)
d. both (a) and (b)
Q. In _______ methods, the stations consult one another to find which station has the right to send.
a. random access
b. controlled access
c. channelization
d. none of the above
Q. In _______ methods, a station cannot send unless it has been authorized by other stations.
a. random access
b. controlled access
c. channelization
d. none of the above
Q. In the ________ method, a station needs to make a reservation before sending data. Time is divided into intervals.
a. reservation
b. polling
c. token passing
d. none of the above
Q. In the ______ method, all data exchanges must be made through the primary device even when the ultimate destination is a secondary device.
a. reservation
b. polling
c. token passing
d. none of the above
Q. In the _______ method, the primary device controls the link; the secondary devices follow its instructions.
a. reservation
b. polling
c. token passing
d. none of the above
Q. In ______, each station is allocated a band to send its data. In other words, each band is reserved for a specific station, and it belongs to the station all the time.
a. fdma
b. tdma
c. cdma
d. none of the above
Q. In _______, the stations share the bandwidth of the channel in time.
a. fdma
b. tdma
c. cdma
d. none of the above
Q. In _____, each station is allocated a time slot during which it can send data. Each station transmits its data in its assigned time slot.
a. fdma
b. tdma
c. cdma
d. none of the above
Q. In _____, each station transmits its data in its assigned time slot.
a. fdma
b. tdma
c. cdma
d. none of the above
Q. W-CDMA is ____.
a. wireless code division multiple access
b. wideband code division multiple access
c. wide code division multiple access
d. web band code division multiple access
Q. You have 5 information signals and only one transmitter. What technique will help in transmitting all the 5 signals?
a. frequency modulation
b. multiplexing
c. amplification
d. amplitude modulation
Q. RTS/CTS period is called ( )
a. waiting period
b. contention period
c. running period
d. none of these
Q. Which is not a variant of S-MAC?
a. timeout mac (tmac)
b. dynamic sensor mac (dsmac)
c. input-output mac (iomac)
d. data gathering (dmac)