Top 350+ Solved Wireless Sensor Networks (WSN) MCQ Questions Answer
Q. For trilateration, we measure _______ between the node and anchors.
a. angle
b. distance
c. angle and distance
d. angle and height
Q. Trilateration measures distance based on radio communication by mapping _____ values into distances.
a. received signal strength indicator - rssi
b. link quality indicator - lqi
c. rssi or lqi
d. rssi and lqi
Q. The time difference of arrival method uses ___________ communication interfaces to estimate distance.
a. radio only
b. acoustic only
c. radio and acoustic
d. radio or acoustic
Q. In case of iterative localization the accuracy of localization ________ with each iteration.
a. increases
b. decreases
c. remains same
d. may increase or decrease
Q. Node gather enough anchor points and measurements, they compute their own locations. Once they have localized, they also declare themselves as an anchors. In this way, sensor nodes without enough anchors get a chance to localize. This approach is called as ____________ localization.
a. iterative
b. direct
c. range free
d. a and c both
Q. Range-free localization trying to find _____________ values distances or angles.
a. exact
b. approximate
c. actual
d. none of these
Q. Following is the example of Range-Free Localization.
a. hop-based localization
b. point in triangle (pit)
c. both a and b
d. triangulation
Q. Trilateration technique measures the _______to all anchors and Triangulation measures ________to all anchors,
a. angle, distance
b. angle, angle
c. distance, angle
d. distance, distance
Q. Hop Based Localization uses the ___________ to calculate the approximate distance to the anchor.
a. median hop length
b. mean hop length
c. minimum hop length
d. maximum hop length
Q. While testing whether a node is inside a triangle or outside by moving node under consideration in any direction. If it gets closer or further away from all three triangle corners, then it is ________ the triangle.
a. outside
b. inside
c. may outside or inside
d. cannot predict
Q. While testing whether a node is inside a triangle or outside by moving node under consideration in any direction. If it does not gets closer or further away from all the three triangle corners, then it is ________ the triangle.
a. outside
b. inside
c. may outside or inside
d. cannot predict
Q. The node in the network, which produces the required data and is able to send it out to other nodes in the network is called as
a. data source
b. data destination
c. data forwarder
d. data sink
Q. The node in the network, which requires the data and is able to receive it from other nodes in the network is called as
a. data source
b. data destination
c. data forwarder
d. data sink