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Chapter 3
Transmission Basics & Networking Media
20
Computer Networking
09/12/2012

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Cards

Term
The distance between corresponding points on a wave's cycle is called________?
Definition
Wavelength
Term
A digital signal composed of a pulse of a positive voltage represents a ____?
Definition
1
Term
The byte 00001110 means _____ on a digital network?
Definition
14
Term
In modulation, a simple wave is called a ____wave, is combined with another analog signal to produce a unique signal that gets transmitted from one note to another.
Definition
carrier
Term
When signals are free to travel in both directions over a medium simultaneously, the transmission is considered?
Definition
full-duplex
Term
____ is a technology used with fiber-optic cable, which enables one fiber-optic connection to carry multiple light signals simultaneously.
Definition
WDM (Wavelength Division Multiplexing)
Term
The data transmission characteristic most frequently discussed and analyzed by networking professionals is ____.
Definition
throughput
Term
One of the most common transmission flaws affecting data signals is ____.
Definition
noise
Term
The most significant factor in choosing a transmission method is it's ____.
Definition
throughput
Term
The more twists per foot in a pair of wires, the more resistant the pair will be to ____.
Definition
cross talk
Term
Modern LANS use ____ or higher wiring.
Definition
CAT 5
Term
Serial refers to a style of data transmission in which the pulses that represent bits follow one another along a ____ transmission line.
Definition
single
Term
____ describes a popular serial data transmission method.
Definition
EIA/TIA RS-232 (Recommended Standard 232)
Term
Which connector is used in RS-232 transmissions?
Definition
DB-25
Term
In a ____ cable, the usual wire positions are exactly reversed in one of the two RJ-45 terminations.
Definition
crossover
Term
Which term describes the hardware that makes up the enterprise-wide cabling system?
Definition
Cable plant
Term
Which standard is also known as structured cabling?
Definition
TIA/EIA Commercial Wiring Standard
Term
The points where circuits interconnect with other circuits is known as ____.
Definition
Cross-connect facilities
Term
Which term identifies a room containing connectivity for groups of workstations in its area?
Definition
telecommunications closet
Term
____ describes the wiring that connects workstations to the closest telecommunications closet.
Definition
Horizontal Wiring