WSN_1

Sensor Network is ____________

• Heterogeneous system consisting of tiny sensors

• Homogeneous system used in wireless

• Very important for security

• All of the mentioned

Ideal positioning technique is _________

• By measurement of distance

• By checking signal strength

• By Trilateration

• All of the mentioned

Which of the following is/are essential components of a sensor node?

• Sensing unit

• Processing unit

• Transmitting unit

• All of the mentioned

Adequate placement of sensor node is important to ensure _______

• Adequate power consumption

• Adequate transmission

• Adequate coverage

• None of these mentioned

Hierarchical network means _____

• Leaf nodes are connected to the sink node

• Leaf nodes are connected to the cluster heads

• Cluster heads are connected to the sink node

• Leaf nodes are connected to the cluster heads and Cluster heads are connected to the sink node

Which of the localization technique use RSSI value?

• Time of arrival

• Angle of arrival

• Received signal strength

• Trilateration

In GPS-based localization, how many satellites are required to sufficient for localization?

• 6

• 3

• 24

• 1

In a random graph model the presence of an edge between two nodes depends on ____________

• Probability

• Euclidean distance

• Angel

• All of these mentioned

Increasing radio transmission power of a sensor device causes _____________

• extend the communication range

• improve link quality

• induce additional interference

• All of these mentioned

A field is said to be K-covered if every point in the field is within the overlapping coverage region of ____________ K sensors

• At least

• At most

• Exactly

• None of these mentioned