Communications Channel (Adv & Disv)

Question 1

Wire pairs adv

Answer 1

Good for short distance communication

Question 2

Wire pairs dsv

Answer 2

Cause high attenuation
easily pick noise
Suffer from less cross talks and are low security
Limited bandwidth

Question 3

Coaxial Cables adv

Answer 3

causes less attenuation
less noisy and more secure than wire pairs
larger bandwidth

Question 4

Coaxial Cables dsv

Answer 4

Is more costly

Question 5

Radio and microwave links adv

Answer 5

These electromagnetic waves with wide range of frequencies

Question 6

Radio and microwave links dsv

Answer 6

Security is achieved only by encoding information