Section 6 - Installing a Physical Network Flashcards
Structured cabling is essentially…
… the organization of a network.
Provide the three aspects of structured cabling.
Telecommunications Closet
Horizontal Run
Work Area
What piece of hardware is used to terminate one end of horizontal runs?
Patch panels
What is used to connect a switch to a patch panel or a computer to a wall jack?
Patch cable(s)
An RJ-45 crimp is only used on __.
A) Patch cables
B) Patch panels
C) Phone cables
A) Patch cables
Horizontal runs used to require 66-punchdown panels for terminating. Nowadays, we use __-___ panels.
110-punchdown panels
UTP and STP cabling is rated by catX. What two pieces of hardware also use cat ratings?
Patch panels
RJ-45 connectors
Define MDF
Main Distribution Frame; the primary equipment room for structured cabling.
Define IDF
Intermittent Distribution Frame; the additional equipment rooms that extend structured cabling networks.
What is the standardized rack size used for installing equipment?
19” rack
What is a U and what is its standardized height?
Unit; a space in the rack that allows for installation of switches, routers, etc. and its standardized height is 1 3/4” tall.
The __ separates the telecom company’s property from your property.
A) Demarc
B) D mark
A) Demarc
What would I use to terminate fiber-optic runs into an MDF?
Fiber distribution patch panel
__ testing will show if the cable has any breaks.
A) Wiremap
B) Continuity
C) Distance using TDR
B) Continuity
__ testing will show the length of the cable and help pinpoint mid-cable breaks.
A) Wiremap
B) Continuity
C) Distance using TDR
C) Distance using TDR
What is a TDR and what is it used for?
Time Domain Reflectometer; used to show the length of a cable run and helps pinpoint mid-cable breaks.
A loopback plug can be used to test the __’s ability to send and receive.
NIC’s
Which two components of structured cabling are most prone to failure?
Patch cables
Wall outlets
True/False:
A voltage monitor tracks and records problems with heat and humidity.
False; a voltage monitor tracks and records problems with power.
True/False:
An environmental/temperature monitor tracks and records problems with heat and humidity.
True
A Fox&Hound device is used to locate cables and connections. What is the true name for this device?
Toner & Probe
A tone generator creates a __ for the probe. A tone probe translates that into an __ __.
Signal
Audible tone
What device is used to test all wires in a cable are working and have been terminated correctly?
Wiremap
What is a TDR that is used for fiber-optic called?
OTDR; Optical Time Domain Reflectometer
Near-end Crosstalk and Far-end Crosstalk is communication interference and is measured in decibels. Provide the acronym for both near and far-end crosstalk.
NEXT
FEXT
__ is when the LED light being emitted breaks down over distance and is more of a fuzzy haze than a direct beam by the time it reaches the opposite end.
Modal Distortion
Define attenuation
The degradation of a signal the father distance it travels.
Define jitter and provide a scenario where it is evidently affecting the network.
When packets get dropped in transit and data arrives incomplete.
Jitter might occur while playing games or video streaming. Games and videos will skip frames or “jitter.”
