Top 350+ Solved Wireless Sensor Networks (WSN) MCQ Questions Answer
Q. Fading of the received radio signals in a mobile communication environment occurs because of .....
a. direct propagation
b. multipath propagation
c. bi-path propagation
d. none of the above
Q. In .............. Frequency Spectrum is divided into smaller spectra and is allocated to each user.
a. tdma
b. cdma
c. fdma
d. fgma
Q. 5. In ................ multiple access is achieved by allocating different time slots for the different users.
a. tdma
b. cdma
c. fdma
d. fgma
Q. A antenna which attempts to direct all its energy in a particular direction is called as a .............
a. directional antenna
b. one to one antenna
c. propagation antenna
d. single direction antenna
Q. Which of the FCC's RF bands operates in the frequency range of 2.4 GHz to 2.4835 GHz
a. ism
b. rfid
c. soho
d. unii
Q. Which one of the following devices rebroadcasts the signals it receives after conditioning them for increased strength and clarity?
a. bridge
b. repeater
c. router
d. gateway
Q. Wireless networks transmit using RF signals, which require a __________ to receive and transmit signals through the air.
a. repeater
b. router
c. antenna
d. remote
Q. Which one of the following RF band is allocated to the Industrial, Scientific and Medical industry?
a. 4.9 ghz to 5.825 ghz
b. 824 mhz to 849 mhz
c. 174 mhz to 220 mhz
d. 2.4 ghz to 2.4835 ghz
Q. Since a wireless ad-hoc network is decentralized and its topology is dynamic, each of the wireless nodes must perform its own message __________.
a. forwarding
b. protocols
c. switching
d. range
Q. What is the networking device used to forward packets on a packet-switching network?
a. hub
b. lan switch
c. nap
d. router
Q. What signal transmission method intersperses message segments from multiple sessions into a single medium?
a. dsss
b. multiplexing
c. modulation
d. fhss
Q. What is the term used to describe the height of a radio wave?
a. frequency
b. amplitude
c. wavelength
d. modulation
Q. The general rule of __________ is the inverse-square law, which measures an electromagnetic wave's strength relative to the distance over which it is transmitted.
a. intensity
b. frequency
c. amplitude
d. propagation