Question

What are the two characteristics of fiber-optic cable? (Choose two.)

A)It is not affected by EMI or RFI.
B)Each pair of cables is wrapped in metallic foil.
C)It combines the techniques of cancellation, shielding, and twisting to protect data.
D)It typically contains 4 pairs of fiber-optic wires.
E)It is more expensive than UTP cabling is.

Answer 1

Fiber-optic cables are characterized by their immunity to electromagnetic interference and their high bandwidth capacity, which enables them to transmit large volumes of data over long distances without signal degradation.

Step-by-step explanation:

Fiber-optic cables have become the backbone of modern telecommunications due to their advantageous properties. Two of the main characteristics that distinguish fiber-optic cables from other forms of cabling are their immunity to electromagnetic interference and their high capacity for data transmission.

Key Characteristics:

1. Immunity to Electromagnetic Interference (EMI): Unlike metallic cables, fiber-optic cables are made of glass or plastic fibers, which do not conduct electricity. This means that they are not affected by electromagnetic interference (EMI) or radio-frequency interference (RFI), which can significantly degrade the signal quality in copper cables.
2. High Bandwidth Capacity: Fiber-optic cables can support a significantly higher number of data transmissions over large distances without degrading the signal. This is known as having high bandwidth, which is essential for internet communications, telephone conversations, and sharing large amounts of data swiftly.