STRUCTURED CABLING FINAL 2025
EXAM SET QUESTIONS AND VERIFIED
ANSWERS
Twisted Pair Cable - Cables made of copper wires that are twisted around each
other and are surrounded by a plastic jacket (such as traditional home phone wire).
Unshielded Twisted Pair (UTP) - Networking cable that has four twisted pairs of
copper wire and a flexible outer coating.
Category 5 - What is the minimum category of twisted-pair cable you need to
support 100 Mbps?
Category 5e - A popular category of twisted pair that supports speeds up to 100
Mbps. It is now the minimum recognized cable category for data transmission in
ANSI/TIA-568-C.
Category 6 - A popular category of twisted pair that supports speeds up to 1000
Mbps. Its intended use is for Gigabit Ethernet and other future high-speed
transmission rates.
Category 6a - Was officially recognized with the publication of ANSI/TIA/EIA-
568-B.2-10 in February 2008. In addition to more stringent performance
requirement it also extends the usable bandwidth to 500MHz.
Dark Fiber - A spare fiber installed during the construction of the network that was
reserved for future use.
Structured Cabling Final 2025
, Structured Cabling Final 2025
Single Mode Fiber Optic Cable - A form of fiber-optic cable that supports only one
signal transmission at a time and that is used mainly for long- distance
communication.
Multimode Fiber Optic Cable - Used for shorter distances this type of fiber-optic
cable can carry several signals at the same time.
Plenum Cable - Fire resistant and non-toxic; it must be used when wiring above
ceiling tiles. This grade of cable does not give off noxious or poisonous gases
when burned.
Riser Cable - Another term for vertical cable; refers to cable that goes between
floors in a building.
Bandwidth - The amount of data that can be transmitted over a network in a given
amount of time.
Decibel - A unit used to compare the loudness of different sounds.
Propagation Delay - Any delay in communications due to signal transmission time
through a physical medium
ANSI (American National Standards Institute) - A nonprofit organization dedicated
to creating trade and communications standards.
Structured Cabling Final 2025