Wireless Sensor Networks Wsn Set 17
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This set of Wireless Sensor Networks (WSN) Multiple Choice Questions & Answers (MCQs) focuses on Wireless Sensor Networks Wsn Set 17
Q1 | Range-free localization trying to find _____________ values distances or angles.
- exact
- approximate
- actual
- none of these
Q2 | Following is the example of Range-Free Localization.
- hop-based localization
- point in triangle (pit)
- both a and b
- triangulation
Q3 | Trilateration technique measures the _______to all anchors and Triangulation measures ________to all anchors,
- angle, distance
- angle, angle
- distance, angle
- distance, distance
Q4 | Hop Based Localization uses the ___________ to calculate the approximate distance to the anchor.
- median hop length
- mean hop length
- minimum hop length
- maximum hop length
Q5 | Node A and B 130 meters away and 5 hope separated. Node B and C 170 meters away and 6 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.
- 24
- 28.3
- 26
- 26.1
Q6 | Node A and B 130 meters away and 5 hope separated and Node A and c 120 meters away and 5 hope separated. Then the mean hop length is___ meters.
- 24
- 25
- 26
- 50
Q7 | 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.
- outside
- inside
- may outside or inside
- cannot predict
Q8 | 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.
- outside
- inside
- may outside or inside
- cannot predict
Q9 | 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
- data source
- data destination
- data forwarder
- data sink
Q10 | The node in the network, which requires the data and is able to receive it from other nodes in the network is called as
- data source
- data destination
- data forwarder
- data sink
Q11 | Any node in the network, which is able to receive it from another node and to send it further is called as
- data source
- data destination
- data forwarder
- data sink
Q12 | A dedicated node(s) in the network, which is the embedded destination of any data in this network is called as
- data source
- data destination
- data forwarder
- data sink
Q13 | Select the correct statement
- a valid routing path may consists of infinite number of nodes but it does not contain loops.
- a valid routing path consists of a finite number of nodes and it may contain loops.
- a valid routing path consists of a finite number of nodes and it does not contain loops.
- a valid routing path consists of a finite number of nodes and it contain loops.
Q14 | Select the incorrect statement.
- while a normal data destination cannot change over time, the sink can.
- a sink can be mobile and change its position.
- sink may have additional broadband communication interface
- the individual nodes on the path are called as hops.
Q15 | Select the incorrect statement.
- while a normal data destination can change over time, the sink usually does not.
- a sink cannot be mobile and change its position.
- sink may have additional broadband communication interface
- the individual nodes on the path are called as hops.
Q16 | ___________ delivers the message to all nodes in the network. Single source and all destinations
- full network broadcast
- unicast
- multicast
- convergecast
Q17 | _____________ has one source and one destination, which could be any nodes in the network
- full network broadcast
- unicast
- multicast
- convergecast
Q18 | ___________ has several destinations. There is a single source, but multiple destinations of the data.
- full network broadcast
- unicast
- multicast
- convergecast
Q19 | _____________ is special sensor networks and refers to the collection of data from all nodes to a dedicated sink.
- full network broadcast
- unicast
- multicast
- convergecast
Q20 | Select incorrect statement
- hop corresponds to some distance in the network, thus more hops correspond to longer distance.
- geographic proximity guarantee the availability or the shortness of a route to the destination.
- number of hops from the destination is not available at all nodes. needs to be discovered
- two protocols can use the same metric, but perform the routing differently and with different efficiency.
Q21 | Select incorrect statement
- hop corresponds to some distance in the network, thus more hops correspond to longer distance.
- geographic proximity does not guarantee the availability or the shortness of a route to the destination.
- number of hops from the destination is always available at all nodes.
- two protocols can use the same metric, but perform the routing differently and with different efficiency
Q22 | Select incorrect statement
- hop corresponds to some distance in the network, thus more hops correspond to longer distance.
- geographic proximity does not guarantee the availability or the shortness of a route to the destination.
- number of hops from the destination is not available at all nodes. needs to be discovered
- two protocols can use the same metric, perform the routing differently but has same efficiency.
Q23 | Which of the following is not a prohibitive factors for GPS in wireless sensor networks
- power consumption
- accuracy maximum up to 15 meters
- cost and size
- need for line of sight (los)
Q24 | In WSN messages travel multiple hops, so if it has a________ reliability on each link, then the probability of a message transiting the entire network would be _________.
- high, high
- high, low
- low, low
- low, high