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CompTIA - Network+ > Installing Network > Flashcards

Installing Network Flashcards

1
Q

Structured cabling

A

set of standards to install cable in a safe and orderly fashion

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2
Q

TIA/EIA

A

Telecommunications Industry Association / Electronic Industry Alliance

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3
Q

Two types of UTP

A 
solid core (single solid wire, better conductor)
stranded core (bundle of wires, harder to break)
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4
Q

What type of cabling should horizontal runs be?

A

solid core

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5
Q

Four-pair only cables

A

Cat 5e and later

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6
Q

IDF

A

Intermediate distribution frame

  • telecommunications room
  • where all the horizontal runs come together
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7
Q

Equipment rack width

A

19 inches

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8
Q

Equipment rack unit

A

U - 1.75 inches

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9
Q

Patch panel

A

a box with rows of female ports on the front, and permanant connections in the back for horizontal runs

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10
Q

Most common patch panel

A

110 block

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11
Q

old patch panel used for phones

A

66 block

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12
Q

demarc

A

physical location of the internet connection, marks the dividing line of responsibility for the functioning of the network

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13
Q

other names for demarc

A

NIU - Network Interface Unit
NIB - Network Interface Box
NID - Network Interface Device

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14
Q

Demarc connects to?

A

CPE (Customer-premises Equipment)

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15
Q

Main switch in an MDF

A

Vertical cross-connect

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16
Q

MDF

A

Main distribution Frame - serves IDFs

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17
Q

Steps to Install Cable

A

1) get or create floor plan
2) map runs and drops
3) Determine location of IDF
4) pull cable

18
Q

Determining the location of the Telecommunications room

A

1) distance
2) power
3) humidity
4) cooling
5) access

19
Q

wiremap test

A

picks up continuity, shorts, crossed wires

20
Q

TDR

A

Time domain reflectometer

- can detect where a break is on a cable

21
Q

NEXT

A

Near-end crosstalk

- crosstalk at the end being tested

22
Q

FEXT

A

Far-end crosstalk

- crosstalk at the opposite end being tested

23
Q

How is crosstalk measured

A

dB

24
Q

Attenuation

A

signal gets weaker as it travels down the line

increases crosstalk

25
Q

Jitter

A

a delay in completing a transmission of all the frames in a message

26
Q

Cable Certifier

A

can do both high-end testing and generate a report to prove runs pass TIA/EIA standards

27
Q

dirty fiber connector

A

can cause signal loss. dont smudge the glass

28
Q

dispersion

A

signal loss for fiber when signal travels too far

29
Q

bend radius limitation

A

limit fiber can be bent. over this will cause light leakage.

30
Q

transceiver mismatch

A

component might fit, but have the wrong signal

31
Q

cable or fiber mismatch

A

wrong kind of cable in component

32
Q

wavelength mismatch

A

different fiber components are designed for different wavelengths

33
Q

OTDR

A

Optical Time Domain Reflectometer

  • tests fiber runs
  • can tell the distance of a break
34
Q

Three biggest problems with fiber

A

attenuation, light leakage and modal distortion

35
Q

Bonding

A

using multiple NICs for a single machine

- also called link aggregation

36
Q

LACP

A

Link Aggregation Control Protocol

- controls how multiple network devices send and receive data as a single connection

37
Q

Link light

A

Steady on for good connection

flashing for bad connection

38
Q

Activity light

A

turns on when NIC detects traffic

39
Q

Collision light

A

turns on when NIC runs into collision

40
Q

First place to check with fiber optic problems?

A

the connections

- the only place people can touch

41
Q

UPS

A

Uninterruptible Power Supply

  • battery backup that plugs into a wall
  • gives enough power to shut down in an orderly fashion
42
Q

Voltage Event Recorder

A

Plugs into power outlet and tracks voltage over time

CompTIA - Network+ (15 decks)

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