Answers and Illustrations
Given
25-pair color code - ANSWER ✔✔White - Blue, orange, green,
brown, slate
Red - Blue, orange, green, brown, slate
Black - Blue, orange, green, brown, slate
Yellow - Blue, orange, green, brown, slate
Violet - Blue, orange, green, brown, slate
Fiber color code - ANSWER ✔✔Blue, Orange, Green, Brown, Slate,
White, Red, Black, Yellow, Violet, Rose, Aqua
,NVP - ANSWER ✔✔Nominal Velocity of Propagation
Insertion loss - ANSWER ✔✔The difference in the amount of power
received before and after something is inserted into the circuit.
Resistance - ANSWER ✔✔Resistance is expressed in Ohms, and is
the property of a conductor to resist the flow of electricity through it.
V=IR
Inductance - ANSWER ✔✔Is a property of an electromagnetic field
built around a conductor that opposes any change in the current flow in
a circuit
Capacitance - ANSWER ✔✔is a property of conductors that allows
storage of electric charges when potential differences exist between the
conductors.
Impedance (V) - ANSWER ✔✔Total opposition of current flow
measured in Ohms
American Wire Gauge (AWG) - ANSWER ✔✔A standard rating that
indicates the diameter of a wire, such as the conducting core of a coaxial
cable or the twisted pairs in a UTP cable.
Megahertz (MHz) - ANSWER ✔✔one million hertz, especially as a
measure of the frequency of transmissions
, Megabit (Mb) - ANSWER ✔✔Approximately one million bits. Often
used as a measurement of data transfer throughput.
Bandwidth - ANSWER ✔✔The amount of data that can be
transmitted over a network in a given amount of time.
Decibel (dB) - ANSWER ✔✔A unit used to compare the loudness of
different sounds.
Crosstalk - ANSWER ✔✔when data bleeds from one pair to another
in a cable
Alien Crosstalk (AXT) - ANSWER ✔✔Unwanted signal coupling from
one permanent link to another
USOC - ANSWER ✔✔Universal Service Order Code
Coaxial cable types - ANSWER ✔✔Series-6 and Series-11
Coaxial connectors - ANSWER ✔✔Series-6 uses BNC and F
connectors
Series-11 uses F and N connectors
Fiber connectors - ANSWER ✔✔SC, ST, and SST(LC or
cladding - ANSWER ✔✔The glass or plastic shield around the core of
a fiber-optic cable. Cladding reflects light back to the core in patterns
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