CN9 Wired Media

The terms guided and ____ are used to distinguish the type of path used by the transmission media.

• unguided
• wireless
• route
• wired

Which of the following is NOT a form of energy used to classify transmission media?

• light
• electrical
• electromagnetic
• hydro

Why is it desirable to place metals between a source of noise and a communication medium?

• to make it more noisy
• to make the communication less prone to sunlight damage
• metal helps to absorb the noise
• metal makes the communication medium shiny

What does UTP stands for?

• universal transmission protocol
• unshielded twisted pair
• united transmission protocol
• united twisted pair

What does STP stands for?

• single transmission protocol
• signal transmission protocol
• shielded twisted pair
• single twisted pair

In a coaxial cable, the outermost layer of the wiring is known as the _____.

• centre core
• metallic shield
• plastic jacket
• dielectric insulator

Which organisation(s) worked together to create the standards for STP used in computer networks?

• American National Standards Institute (ANSI)
• Electronic Industries Alliance (EIA)
• Telecommunications Industry Association (TIA)
• all of the options

What is the data rate for a CAT 5 twisted pair cable?

• 125
• 20
• 100
• 200

Which type of media supports light energy transmission?

• coaxial cable
• optical fiber
• twisted pair
• shielded twisted pair

Which type of optical fiber is most expensive?

• single mode
• twisted mode
• multimode, graded index
• multimode, step index