Wireless Sensor Networks Quiz

What is the main challenge in achieving energy efficiency in Wireless Sensor Networks?

• Limited power supply for the sensor nodes

• Lack of skilled personnel for maintenance

• Excessive data transmission

• Interference from other wireless devices

How can the use of sleep scheduling help in improving energy efficiency in WSN?

• By reducing the number of nodes in the network

• By using higher power consumption modes for longer periods of time

• By allowing nodes to enter low-power sleep modes when not in use, reducing overall energy consumption.

• By increasing the data transmission rate between nodes

What are some common techniques used to reduce energy consumption in WSN?

• Constantly keeping all nodes active

• Increasing data transmission

• Data aggregation, duty cycling, and using energy-efficient protocols

• Using outdated and inefficient protocols

Why is energy efficiency important in WSN?

• To have no impact on the network lifetime or battery replacements.

• To prolong the network lifetime and reduce the need for frequent battery replacements.

• To increase the network lifetime and require more frequent battery replacements.

• To decrease the network lifetime and increase the need for frequent battery replacements.

What are the advantages of using energy harvesting techniques in WSN?

• No impact on the lifespan of sensor nodes

• Making the network less sustainable

• Increasing the cost of sensor nodes

• Prolonging the lifespan of sensor nodes, reducing the need for battery replacement, and making the network more sustainable