Electromagnetic Spectrum Quiz

What are the two broad categories of transmission media?

• Wired and wireless

• Guided and unguided

• Digital and analog

• Optical and electrical

What is the lowest frequency range mentioned in the electromagnetic spectrum diagram?

• 0 Hz

• 3 KHz

• 300 GHz

• 430 THz

What is the highest frequency range mentioned in the electromagnetic spectrum diagram?

• 300 GHz

• 430 THz

• 750 THz

• 1000 THz

What type of rays are found at the highest frequency in the electromagnetic spectrum?

• Infrared rays

• Ultraviolet rays

• X, gamma, cosmic rays

• Visible light

What are the two forms of twisted-pair cables?

• Unshielded (UTP) and Shielded (STP)

• Coated and Uncoated

• Insulated and Non-insulated

• Single and Double

What is a characteristic of coaxial cables?

• Carries higher frequency signals than twisted-pair cables

• Uses a plastic core conductor

• Eliminates all noise

• Is not categorized by RG ratings

What is the role of the insulator in a coaxial cable?

• To separate the inner conductor from the outer conductor

• To increase signal speed

• To reduce cable length

• To enhance color coding

What is the relationship between the angle of incidence and the angle of reflection?

• They are equal

• They are opposite

• They are unrelated

• They are complementary

In multimode, graded-index fiber, where is the density highest?

• At the edge

• At the center of the core

• At the cladding

• At the interface

What is the primary function of a receiving earth station in satellite communication?

• To receive signals from the satellite

• To send signals to the satellite

• To block signals from the satellite

• To amplify signals from the satellite