Monthly Review Compilation Flashcards
Labelling a bunch of UTP cabling with permanent marker using the same identification at both ends eliminates the need to trace the cables after they have been installed and terminated (True/False)
True
When working with ladders in the lab or on the job you should ____________________.
Never leave tools on top of the ladder
How much untwisting is allowable before you lose performance in Cat5e or Cat6A cabling?
The twist of each pair at the connectors must be maintained to be within 1/2”
All CAT6A cabling will have a maximum distance of ________?
100 Meters
Which Punch down tool should be used to terminate cabling onto Canadian cross-connect systems?
Bix punch down tool
Does UTP 4 pair CAT6 stranded pair data cabling come with a rip cord inside?
No
What is reduced by the different twist rates in the separate pairs of a CAT6 UTP cable?
Crosstalk
When working the 4 pair UTP cabling where do most “Shorts” and “Opens” occur?
At the connectors/At the point of termination
Analog systems transmit data as a continually varying signal whereas digital systems transmit data as a _________________?
Stream of ones and zeros
The VDV cable tester used in the lab is capable of showing both NEXT (Near End CrossTalk) and Wire Map (True/False)
False. The VDV cable tester does not test for NEXT.
What is unwanted electrical, electromagnetic, or radio frequency energy that can degrade and distort the quality of signals and communications of all types referred to as?
Noise
How fast data flows on a given transmission path or the range of frequencies that a signal occupies on a given medium is referred to as __________?
Bandwidth
Which way should the tab on the 8p8c modular plug face when making a straight-through patch cable?
Down
In the US, the “Network Interface” or NI is the physical electrical boundary between the inside wiring and the telecommunications network. In Canada the NI is often referred to as the ________.
Demarcation Point
A CAT6 UTP cable has four twisted pairs inside the cable jacket. In a 10/100 Base-T network two of these pairs are used to simultaneously transmit signals in opposite directions creating a _______________.
Full Duplex Link
It is not safe to leave cabling lying on ceiling tiles. What is the most effective way to support cabling above the ceiling?
Using J-Hooks, Bridal Rings, or Cable Baskets
What is the most common wireless data signal?
802.11
Which tool is used to terminate 4 pair CAT6 UTP cabling onto a “Wirewerks” data insert?
110 Punchdown tool
What is the color code for T-568A standard?
White/Green, Green, White/Orange, Blue, White/Blue, Orange, White/Brown, Brown
What is the color code for T-568B Standard?
White/Green, Green, White/Orange, Blue, White/Blue, Orange, White/Brown, Brown
What Standard specifies that a unique number is to be used for each network cable that is being installed?
The ANSI/TIA/EIA 606-A standard
What would be the easiest way to correct a “NEXT” error should it be displayed on the certification meter while testing?
Re-Terminate the connector ensuring that the twist ratio is within specification
What test performs basic continuity functions and is the first line of defense in finding cabling problems?
Verification Test
Which project phase would normally include cable certification?
Certification falls under the Finish Phase
What binder ribbon color would identify the pairs 126-150 in a 200 pair cable?
Red/Blue
What type of Ethernet cabling would be installed in an area with high EMI?
STP (Shielded Twisted Pair)
The Canadian Electrical Code would be most concerned with ____________________?
Determining wether general, riser, or plenum cable must be used
What are the two general types of fiber optic cable found in current networking environments?
Singlemode and Multimode
What is the term used for an unwanted connection, such as when exposed wires from one terminal screw touch exposed wires on another terminal screw?
Short
Ethernet is an example of what type of technology?
Baseband
What order are the conductors of a four pair cable terminated when working with a BIX1A4 from left to right?
White/Blue, Blue, White/Orange, Orange, White/Green, Green, White/Brown, Brown
What are the Six Subsystems of a Structured Cabling System?
- Entrance Facilities,
- Equipment Room,
- Backbone Cabling,
- Telecommunications Room/Telecommunications Enclosure,
- Horizontal Cabling,
- Work Area
What EIA/TIA standard should be used in Canada when making straight-through patch cables, or when terminating CAT6 data cables onto a data jack or patch panel?
T-568A
During the Rough-In cabling process, the starting point for cable pulls when cables are pulled from one area to another is referred to as ___________.
Drop Zone/ Staging Area/ Setup Area
Any of these are fine
What component should a 25-Pair cable be terminated onto?
QCBIX1A
What color is most commonly used to indicate a regular single-mode optical fiber?
Yellow
In fiber optics what is loss of power in light measured in?
dB
Can fiber optic networks send signals in analog or digital format? (Yes/No)
Yes
Many fiber optic networks use _______ multiplexing to send multiple signals over the same fiber at the same time.
Wavelength Division
The difference between the specified output of a transmitter and the minimum power input of a receiver in a fiber optic link is called the _____.
Power Budget
Practically the only networks that still use multi mode fiber are _____.
Premises LANS
What is used in Fiber-to-the-home optical networks to connect many users from one central source to save fibers and costs?
Optical Splitters
What fiber is used in Outside plant fiber optic networks?
Single-Mode for its greater length and bandwidth capability
With ________, phone calls are treated as just another kind of data
Voice over IP
Does Fiber optic Cabling provide a higher degree of security than UTP/STP and Coaxial cabling? (Yes/No)
Yes
What does the term “attenuation” mean in data communication?
Loss of signal strength as distance increases
What are two common causes of signal degradation when using UTP cabling?
Improper Termination, Low-quality cable or connectors
An optoelectronic instrument that works similar to a radar by injecting a series of optical pulses into the fiber optic cable while under test is known as an _______?
Optical Time Domain Reflectometer
Is a signal regenerator used to boost the pulse in a fiber-optic cable or copper cable?
A signal regenerator is used to boost an electronic pulse in a copper cable
Most problems with fiber-optic connections are found with the ________ because of dirt/dust which can add attenuation that will impede a fiber-optic signal.
Connectors
Does the refractive index lower as the velocity of light gets faster? (Yes/No)
Yes
Which is more permanent when it comes to Fiber Optic Connectors and Splices; a splice or a connector?
Splice
A fiber typically used for short-distances links with a core diameter much larger than the wavelength of light transmitted that allows many modes of light to propagate is known as?
Multimode fiber
In fiber optics the angle of incidence at which light is first totally internally reflected is known as the _________.
Critical Angle
What is the purpose of Aramid Yarn in fiber optic cables?
All fiber optic cables must be pulled by the strength member (Aramid Yarn) unless the cable has been specifically designed to be pulled by the jacket
Typically how many elements make up each fiber optic cable?
Five elements
What fiber can support gigabit data rates over long distances?
Singlemode fiber
The _____, or last mile, is the physical connection between the customer’s site and the central office
Local Loop
List two methods used to splice fiber-optic cables?
Fusion and Mechanical
What is splicing?
Splicing is the joining of two pieces of fiber-optic cable.
When should yellow-blue cross connect wire be used?
When connecting Central Office lines to a phone system
_________ Is a device that couples visual light into the fiber to allow visual fault tracing and testing of continuity
Visual Fault Locator
What is the correct order of ring colors according to the 25-pair color code?
White, Red, Black, Yellow, Violet
A CAT6 UTP cable running from the Telecommunications room on floor 1 to an equipment room on floor 3 would be considered part of the ______ cabling.
Backbone
When terminating 4pair UTP CAT6 cable onto a 110 Style Patch Panel, in what order should the pairs be punched down?
The color code that comes included with the Patch Panel.
What acronym best describes a technology that passes electrical power over twisted pair Ethernet cable to power devices such as; Wireless access points, VoIP phones, or Security Cameras?
POE (Power of Ethernet)
What does MDF stand for in relation to telecommunications?
Main Distribution Frame
