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5. Networks > Chapter 6: Installing a Physical Network > Flashcards

Chapter 6: Installing a Physical Network Flashcards

1
Q

Structured Cabling

A

The set of cabling standards

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2
Q

Telecommunications Room

A

The central location to which all cabling from individual PCs runs.

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3
Q

Horizontal Cabling

A

All cables run horizontally (for the most part) from the telecommunications room to the PCs

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4
Q

Work Area

A

Where the cables go to from the telecommunications room

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5
Q

Run

A

A single piece of cable that runs from a work area to a telecommunications room

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6
Q

Solid Core Cable

A
  • A cable that uses a single solid wire to transmit signals

- A better conductor than stranded core, but more fragile

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7
Q

Stranded Core Cable

A
  • A cable that uses a bundle of tiny wire strands to transmit signals.
  • Not as good of a conductor as solid core, but less fragile
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8
Q

Should horizontal cabling be stranded or solid core?

A

Solid Core

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9
Q

Intermediate Distribution Frame (IDF)

A

The more technical name for the telecommunications room

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10
Q

Width of an equipment rack

A

19 inches

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11
Q

Size of a unit (U)

A

1.75 inches

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12
Q

Patch Panel

A

A box with a row of female ports in the front and permanent connections in the back to which you connect the horizontal cables.

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13
Q

110 block

A

The most common type of patch panel connector

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14
Q

Punchdown tool

A

A tool used to connect UTP to a 110 block

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15
Q

TIA/EIA 606

A

Defines an official naming convention for labeling cables

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16
Q

Patch Cables

A

Short, straight-through UTP cables that use stranded cable.

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17
Q

Demarc

A

Where connections from the outside world come into the building.

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18
Q

Network Interface Unit (NIU)

A

Another term for demarc

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19
Q

Smart Jack

A

A type of NIU that enables ISPs or telephone companies to test for faults in a network, such as disconnections or loopbacks.

20
Q

Customer Premises Equipment

A

The primary distribution box and customer-owned/managed equipment that exists on the customer side of the demarc.

21
Q

Demarc Extension

A

Any cabling that runs from the NIU to whatever box is used by the customer as a demarc.

22
Q

Vertical Cross-Connect

A

The main patch panel in a telecommunications room.

23
Q

Main Distribution Frame (MDF)

A

The room in a building that stores the demarc, telephone cross-connects, and LAN cross-connects.

24
Q

Cable Drop

A

Location where the cable comes out of the wall at the workstation location

25
Q

Split Pair

A

A condition that occurs when signals on a pair of wires within a UTP cable interfere with the signals on another wire pair within that same cable.

26
Q

Short

A

Allows electricity to pass between two conductive elements that weren’t designed to interact together.

27
Q

Time Domain Reflectometer (TDR)

A

An advanced cable tester that tests the length of cables and their continuity or discontinuity, and identifies the location of any discontinuity due to a bend, break, unwanted crimp, and so on.

28
Q

Crosstalk

A

Electrical signal interference between two cables that in close proximity to each other.

29
Q

Far-End Crosstalk

A

Crosstalk on the opposite end of a cable from the signal’s source.

30
Q

Near-End Crosstalk

A

Crosstalk at the same end of a cable from which the signal is being generated.

31
Q

Attenuation

A

The degradation of signal over distance for a networking cable.

32
Q

What unit is signal loss measured in?

A

decibels (dB)

33
Q

Cable Certifier

A

A powerful cable testing device used by professional installers to test the electrical characteristics of a cable and then generate a certification report, proving that cable runs pass TIA/EIA standards

34
Q

Optical Time Domain Reflectometers (OTDR)

A

Tester for fiber optic cable that determines continuity and reports the location of cable breaks.

35
Q

Peripheral Component Interconnect (PCI)

A

The expansion slot which you insert a NIC into.

36
Q

Bonding

A

Two or more NICs in a system working together to act as a single NIC to increase performance.

37
Q

Link Aggregation Control Protocol (LACP)

A

Specification of certain features and options to automate the negotiation, management, load balancing, and failure modes of aggregated ports.

38
Q

Activity Light

A

An LED on a NIC, hub, or switch that blinks rapidly to show data transfers over the network.

39
Q

Collision Light

A

A light on some older NICs that flickers when a network collision is detected.

40
Q

Loopback test

A

Sends data out of the NIC and checks to see if it comes back.

41
Q

Uninterruptible Power Supply (UPS)

A

A device that supplies continuous clean power to a computer system the whole time the computer is on.

42
Q

Online UPS

A
  • Continually charges a battery that powers the computer components.
  • If the telco room loses power, the computer stays powered up
43
Q

Standby UPS

A

-Doesn’t power the computer unless the power goes out

44
Q

Tone Generator

A

Connects to a cable and sends an electrical signal along the wire at a certain frequency

45
Q

Tone Probe

A

Emits a sound when it is placed near a cable connected to the tone generator.

5. Networks (22 decks)

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