AND ANSWERS RATED A+
✔✔What is near end cross talk (NEXT) - ✔✔Cross talk close to the source
✔✔What is attenuation to crosstalk far end (ACRF) - ✔✔Cross talk far from the source
✔✔What is alien crossstock (AXT) - ✔✔Cross talk from separate cables
✔✔How do you test for types of crosstalk - ✔✔Pair 1 - pair 2
P1 - P3
P1 - P4
P2 - P3
P2 - P4
P3 - P4
✔✔What is an 8P8C - ✔✔Eight position eight contacts (RJ45) Use for ICT equipment
✔✔What is a 4P4C - ✔✔Four position four contacts used for telephone and headsets
✔✔What is a 6P6C - ✔✔Six position six contacts Use for telephone in modems
✔✔U/UTP - ✔✔Overall unshielded twisted pair, with unshielded twisted pair
✔✔F/UTP - ✔✔Foil screened, unscreened twist pair
✔✔S/UTP - ✔✔Braids screened, unscreened twisted pair
✔✔SF/UTP - ✔✔Braid screened foil screened, unscreened twisted pair
✔✔F/FTP - ✔✔Foil screened, foil screened twisted pair
,✔✔SF/FTP - ✔✔Braided screened foyer screened, foil screened twisted pair
✔✔What category cable and higher will always be shielded - ✔✔Category 7
✔✔T586A & T586B - ✔✔8P8C connector
✔✔What is the difference between T586 and T586B - ✔✔A starts with pair 3 and B
starts with pair 2 (pairs 1 and 4 stay in the same position)
✔✔T586A & T586B both go in what tip ring order from left to right - ✔✔T R T R T R T R
✔✔USOC - ✔✔Universal service order code (RJ61)
✔✔USOC order - ✔✔Starts in the middle with pair one and builds a house with two
through four fanning out
✔✔USOC tip ring order - ✔✔T T T R T R R R
✔✔25 pair color code - ✔✔Rings: Blue, orange, green, brown, Slate
Tips: white, red, black, yellow, violet
✔✔Acronym for Tipps - ✔✔While running backwards youll vomit
✔✔What does transmission mean - ✔✔Movement
✔✔Types of transmission lines - ✔✔Symplex, halfplex, duplex
✔✔Symplex - ✔✔Only one way can communicate (car radio, PA system)
✔✔HalfPlex - ✔✔Two-ways can communicate but only one at a time (intercom, walkie-
talkie)
✔✔Duplex - ✔✔Two way communication all the time (phone calls, zoom calls)
✔✔Hertz - ✔✔Cycles per second (sign wave cycles)
✔✔Analog signal - ✔✔Physical electrical pulses
✔✔Digital signal - ✔✔Code sent with pulse of light (binary)
✔✔Modem - ✔✔Conversion digital to analog for air transmission
,✔✔Megahertz - ✔✔(1,000,000 Hz) Quantifies the band width of a Cabling system (size
of the highway)
✔✔Megabit - ✔✔(1,000,000 bits) Quantifies the number of bits of information being
transmitted (Number of cars)
✔✔BTP (balance twisted pair) resistance - ✔✔100 ohms at 100 MHz
✔✔(Reactive, apparent) Power formula (watts) - ✔✔Volts X amps
✔✔What is true power (RMS Root mean square) - ✔✔The power if the flow was in DC
✔✔True power formula - ✔✔(Volts X amps) X 0.707
✔✔AWG - ✔✔American Wire Gauge
✔✔Resistance is measured in - ✔✔Ohms
✔✔Ohms law - ✔✔The mathematical relationship between volts amps and resistance
✔✔Ohms law formula - ✔✔V
IR
✔✔Inductance - ✔✔Property of an electromagnetic field around a conductor
✔✔Capacitor - ✔✔Electrical storage (battery) measured in farads
✔✔Impedance - ✔✔Opposition to the flow
✔✔Attenuation - ✔✔Insertion loss (measure of signal loss)
✔✔Inductance formula (measured in Henry's) - ✔✔X = 2 X 3.14 X F X L (F = frequency,
L = inductance)
✔✔Capacitance formula (measured in farads) - ✔✔X equals 1/2X 3.14 X F X C (F
equals frequency, C equals capacitance
✔✔Impedance formula - ✔✔Z equals R squared + (L + C) squared (L = inductance, C =
capacitance)
✔✔Coaxial cable - ✔✔Insulated central located conductor with metallic covering
✔✔The foam in coax protects from - ✔✔High-voltage
, ✔✔The braid in coax protects from - ✔✔Low-voltage
✔✔Series 6 coax - ✔✔Solid conductor
✔✔Series 11 coax (long runs) - ✔✔Solid or stranded conductor
✔✔Coax connectors - ✔✔F Connector, N connector, BNC connector
✔✔F-Connector (Coaxial) - ✔✔Compression and spins
✔✔N connector (Coaxial) - ✔✔Center pin connector (works with both series 6 and
series 11)
✔✔BNC connector (Bayonet Neill-Concelman) - ✔✔Centerpin that must be over cable
center conductor
✔✔What is OS1 best for - ✔✔LAN (Local area networks)
✔✔What is OS2 best for - ✔✔Outside plant
✔✔NRTL - ✔✔Nationally recognized testing laboratory
✔✔Multi mode max distance - ✔✔2000 m
✔✔Single mode max distance - ✔✔3000 m
✔✔OM1 - ✔✔No longer OK for use
✔✔OM2 - ✔✔Only for maintenance of existing OM2
✔✔OM3 - ✔✔Higher bandwidth
✔✔OM4 - ✔✔Highest bandwidth
✔✔Different types of fiber cables - ✔✔Single strand (single fiber tight buffer),
distribution (multiple fibers type buffer), breakout multiple fibers type buffer with rip
cord), loose tube (primarily outdoors larger more protection), ribbon (24 strands bundled
together color coordinated "connections MPO), air blown (micro ducts where fiber can
be swapped out)
✔✔Different types of fiber connectors - ✔✔Lc, SC, ST, FC, MPO/MTP