Exam 13: Transmission Medium

The most common use of coaxial cable is to carry a cable TV signal from a cable provider to a subscriber's home.

An optical amplifier boosts the incoming signal, then transmits it back out onto the fiber pipe.

Which of the following is an index used to describe how the medium reflects light?

A(n) ________ is a copper conductor that is the transmission medium used in microwave technology to connect the radio oscillator to the antenna.

________ is the outer glass layer of fiber-optic cable that surrounds the core and keeps light in the core.

Coaxial cable has a center copper conductor of a specific gauge surrounded by a(n) ________ insulation.

In communications, 14, 18, 22, 24, and 26 are all common cable gauges used in networks.

The three bands on the frequency spectrum available to communications providers for satellite links include all of the following except the:

Loss in fiber-optic strands is called ________.

A(n) ________ may be a braided mesh of wires or a thin metal jacket resembling aluminum foil that surrounds the conductors, and its purpose is to insulate conductors from outside electrical forces.

The mechanical splice is usually used in outside telephone plants.

________ occurs in satellite transmission when a signal reflects back on itself and causes the sender to hear himself or herself speak, but improved technology has improved cancellation methods, reducing it significantly.

Which of the following would not require the use of satellite technology?

Electrical conductors used in communications are made of ________.

It is important to remember that some sort of ________ jack or block is needed to complete a copper circuit and that many jacks and blocks are also used to provide a cross connect point and test point.

It is speculated that microwave technology will eventually become obsolete due to the continuing explosion of fiber-optic systems.

The RS-232 is used to transmit higher speed signals than the V.35.

Two bare conductors touch and complete a circuit, causing an outage or ________.

The ________ is the source most often used for transmitting information across a network using light.

The benefit of using the V.35 connector over the RS-232 is that the V.35 provides: