Term
The critical set of standards used to install physical cabling in a safe and orderly fashion. (pg. 112)
A. Wiring standards
B. Network scheming
C. Structured cabling |
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Definition
| C. Stuctured cabling gives professional cable installers detailed standards on every aspect of a cabled network, from the type of cabling to use to the position of wall outlets. |
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Term
A single piece of cable that runs from a work area to a telecommunications room is called a ___. (pg. 117)
A. Drop
B. Wire
C. Span
D. Run |
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Definition
| D. A run is a single piece of of installed horizontal cabling. |
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Term
What are the two cable types that all UTP cables come in? (pg. 117)
A. Stranded core
B. Single core
C. Shielded core
D. Solid core |
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Definition
| A. and D.: Each wire in solid core in UTP uses a single solid wire. With stranded core, each wire is actually a bundle of tiny wire strands. |
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Term
| True or false: Solid core UTP cable is a weaker conductor than stranded core, but can stand up to substantial handling without breaking. |
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Definition
| False: Solid core is a better conductor, but is stiff and will break if handled too often or too roughly. Stranded core is not quite as good a conductor, but it will stand up to substantial handling without breaking. |
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Term
| True or false: TIA/EIA specifies that horizontal cabling should always be solid core. (pg. 117) |
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Definition
| True:It's going into walls and ceilings, safe from people while being able to take advantage of the better conductivity. |
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Term
The place where all the horizontal runs from all the work areas come together. (pg. 118)
A. Equipment rack
B. Intermediate distribution frame
C. Main distribution frame
D. Telecommunications room |
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Definition
| B. or D.: The telecommunications room, also known as the IDF, is the heart of the basic star topology network |
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Term
___ provide a safe, stable platform for all the different hardware components in a telecom room. (pg. 118)
A. Equipment boxes
B. Technology bars
C. Cable closets
D. Equipment racks |
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Definition
| D. Equipment racks are the central components of every telecommunications room. |
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Term
| True or false: All equipment racks are 19 inches wide, but they vary in height. (pg. 119) |
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Definition
| True: They can vary from two- to three-foot-high models that bolt onto a wall to the more popular floor-to-ceiling models, free-standing racks. |
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Term
All rack-mounted equipment uses a height measurement called a unit (U). A U is ___ inches. (pg. 120)
A. 1.75
B. 2
C. 3.5
4. 2.5 |
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Definition
A. 1.75 inches, so 1U = 1.75 inches, 2U = 3.5 inches, and so on.
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Term
A box with a row of female ports in the front and permanent connections in the back that terminate horizontal cables. (pg. 122)
A. Patch panel
B. Server
C. Access point
D. Cable distributor |
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Definition
A. A patch panel facilitates cabling organization and provides protection to horizontal cabling.
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Term
Some networks that have a second set of wires of A/V connections running to the telecommunications room. These runs connect to a ___. (pg.127)
A. Patch bay
B. BIX block
C. Patch panel
D. A/V panel |
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Definition
| A. A patch bay is a dedicated block with A/V connections rather than network connections made for runs of coaxial cable or fiber. |
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Term
A device that marks the dividing line of responsibility for the functioning of a network between internal users and upstream service providers. (pg. 131)
A. Handoff
B. De-militarized zone
C. Terminal
D. Demarcation point |
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Definition
| D. You take care of the internal functions; the ISP must support the connectivity and functions on the far side of the demarc. |
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Term
In a private home, the equipment (cable modem, optical network terminal, etc.) supplied by your ISP is a ___ that serves as a demarc between your home network and your ISP. (pg. 132)
A. Smartjack
B. Network interface unit
C. Service pack
D. Internet kit |
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Definition
| B. Network interface unit (NIU) |
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Term
After the demarc, network and telephone cables connect to a box owned by the customer that acts as the primary distribution tool for the building. What is it called? (pg. 133)
A. Network interface box
B.Demarc extension
C. Main distribution frame
D. Customer-premises equipment |
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Definition
| D. Customer-premises equipment |
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Term
The main patch panel in a building that leads to every telecommunications room. (pg. 133)
A. Fiber distribution panel
B. Demarc extension
C. Vertical cross-connect
D. Main distribution frame |
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Definition
| C. Vertical cross-connect |
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Term
Any disruption on a medium (wired or wireless) that intentionally or inadvertently prevents valid signals from being read by an intended recipient. (pg. 148)
A. Signal degredation
B. Short
C. Interference
D. Discontinuity |
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Definition
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Term
A(n) ___ allows electricity to pass between two conductive elements that weren't designed to interact together, such as when two bare wires touch. (pg. 149)
A. Short
B. Conduit
C. Open
D. Insulator |
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Definition
| A. Short, also called short circuit. You can also get a short when improperly criming two cables into the same place on a crimp. |
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Term
A form of electrical signal interference that is caused when unintended pairs in a UTP cable pick up the intended pair's signal. (pg. 152)
A. Attenuation
B. Crosstalk
C. Latency
D. Short |
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Definition
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Term
The delay between the time the sending machine sends a message and the time the receiving machine can start processing those frames. (pg. 153)
A. Lag
B. Procession
C. Attenuation
D. Latency |
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Definition
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Term
Signal loss in networking is measured in ___. (pg. 154)
A. Wattage
B. Megabits (Mb)
C. Megahertz (MHz)
D. Decibels (dB) |
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Definition
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Term
___ is when a cable signal spreads out over long distances.
A. Attenuation
B. Leakage
C. Dispersion
D. Erosion |
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Definition
| C. Dispersion. Both attenuation (weakening of the signal over long distances) and it are caued when wave signals travel too far without help. |
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Term
Every piece of fiber has a certain bend radius limitation. If you bend a fiber-optic cable too much, you get ___. (pg. 155)
A. Magnetic interference
B. Light leakage
C. Dispersion
D. Breakage |
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Definition
B. Light leakage; part of the signal goes out of the cable rather than arriving at the other end.
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Term
Tool for fiber-optic cable installers that enables the tech to combine two cables without losing quality. (pg. 157)
A. Fusion splicer
B. Fiber splicing kit
C. Optical time domain reflectometer (OTDR)
D. Crimper |
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Definition
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Term
The process that allows you to use multiple NICs for a single machine to increase the overall bandwidth of the connection. (pg. 160)
A. Port aggregation
B. Bonding
C. Melding
D. Link aggregation |
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Definition
A, B and D. Port aggregation adds another lane of equal speed, enabling multiple data transfers to occur at the same speed.
Bonding and link aggregation are other names for it. |
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Term
Small device with two female ports that enable you to connect two pieces of cable together to overcome distance limitations. (pg. 164)
A. Coupler
B. Repeater
C. Extender
D. Relayer |
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Definition
| A. A couple can be used to extend a cable run. |
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Term
True or false:
An uninterruptible power supply provides enough power for you to continue working in the event of a power outage. (pg. 165) |
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Definition
| False: A UPS allows you to shut down in an orderly fashion in the event of an outage. A generator allows you to continue working. |
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Term
The device that connects to a cable using alligator clips, tiny hooks or a network jack and sends an electrical signal to help trace its run. (pg. 167)
A. Tone generator
B. Tone tracer
C. Tone signaler
D. Tone probe |
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Definition
| A. A tone generator sends a signal along the wire at a certain frequency that allows a tone probe to make a sound when placed near the other end of the cable. |
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