Wireless Networking Quiz 1

Differentiate between an analog and a digital electromagnetic signal.

What are three important characteristics of a periodic signal?

How many radians are there in a complete circle of 360 degrees?

What is the relationship between the wavelength and frequency of a sine wave?

What is the relationship between a signal’s spectrum and its bandwidth?

What is attenuation?

Define channel capacity.

What key factors affect channel capacity?

Differentiate between guided media and unguided media.

What are some major advantages and disadvantages of microwave transmission?

What is direct broadcast satellite?

Why must a satellite have distinct uplink and downlink frequencies?

Indicate some significant differences between broadcast radio and microwave.

Why is multiplexing so cost-effective?

How is interference avoided by using frequency division multiplexing?

Explain how synchronous time division multiplexing works.