MCQ Questions on Sensor Networking Topics

Which of the following is an example of a sensor?

• Electric motor

• Microphone

• LED

• Relay

What is the primary function of an actuator?

• Sense changes in the environment

• Convert signals into physical actions

• Process data

• Transmit data wirelessly

Which type of sensor is used to measure temperature?

• Thermocouple

• Ultrasonic sensor

• Gyroscope

• Accelerometer

A piezoelectric actuator operates by:

• Producing light

• Generating magnetic fields

• Creating mechanical movement through electric charge

• Emitting sound waves

An ultrasonic sensor is commonly used for:

• Detecting light intensity

• Measuring distances

• Monitoring temperature

• Sensing magnetic fields

Which device operates at the physical layer of the OSI model?

• Switch

• Repeater

• Router

• Firewall

A router primarily operates at which layer of the OSI model?

• Data link layer

• Transport layer

• Network layer

• Application layer

Which of the following operates at the application layer?

• Web browser

• Switch

• Router

• Modem

A switch is a device primarily associated with which layer?

• Network layer

• Data link layer

• Transport layer

• Application layer

Which device connects two different network architectures?

• Router

• Bridge

• Gateway

• Hub