Chapter 2 Quiz: Physical Layer

What is the main function of transmission media?

• To encrypt data

• To store data

• To carry data signals between devices

• To delete old signals

Which of the following is a guided medium?

• Radio wave

• Fiber optic cable

• Infrared

• Microwave

Twisted pair cable is commonly used in:

• Satellite systems

• Bluetooth

• Local Area Networks (LANs)

• TV broadcast

What advantage does STP have over UTP?

• Lower cost

• Easier to install

• Better resistance to interference

• Higher data rate

What is the typical application of coaxial cables?

• LANs

• Cable television

• Satellite communication

• Remote sensing

Which of the following uses light to transmit data?

• Coaxial cable

• Fiber optic

• Microwave

• Bluetooth

Which transmission media has the highest bandwidth?

• Twisted pair

• Coaxial

• Fiber optic

• Radio waves

What is the major drawback of twisted pair cables?

• High cost

• Difficult installation

• High signal attenuation

• Cannot transmit digital data

Which unguided medium travels in all directions?

• Microwaves

• Infrared

• Radio waves

• Fiber optic

What condition affects microwave signals the most?

• Dust

• Sunlight

• Rain

• Cloud