Installing Network

Question 1

Structured cabling

Answer 1

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

Question 2

TIA/EIA

Answer 2

Telecommunications Industry Association / Electronic Industry Alliance

Question 3

Two types of UTP

Answer 3

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

Question 4

What type of cabling should horizontal runs be?

Answer 4

solid core

Question 5

Four-pair only cables

Answer 5

Cat 5e and later

Question 6

IDF

Answer 6

Intermediate distribution frame

• telecommunications room
• where all the horizontal runs come together

Question 7

Equipment rack width

Answer 7

19 inches

Question 8

Equipment rack unit

Answer 8

U - 1.75 inches

Question 9

Patch panel

Answer 9

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

Question 10

Most common patch panel

Answer 10

110 block

Question 11

old patch panel used for phones

Answer 11

66 block

Question 12

demarc

Answer 12

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

Question 13

other names for demarc

Answer 13

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

Question 14

Demarc connects to?

Answer 14

CPE (Customer-premises Equipment)

Question 15

Main switch in an MDF

Answer 15

Vertical cross-connect

Question 16

MDF

Answer 16

Main distribution Frame - serves IDFs

Question 17

Steps to Install Cable

Answer 17

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

Question 18

Determining the location of the Telecommunications room

Answer 18

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

Question 19

wiremap test

Answer 19

picks up continuity, shorts, crossed wires

Question 20

TDR

Answer 20

Time domain reflectometer

- can detect where a break is on a cable

Question 21

NEXT

Answer 21

Near-end crosstalk

- crosstalk at the end being tested

Question 22

FEXT

Answer 22

Far-end crosstalk

- crosstalk at the opposite end being tested

Question 23

How is crosstalk measured

Answer 23

dB

Question 24

Attenuation

Answer 24

signal gets weaker as it travels down the line

increases crosstalk

Question 25

Jitter

Answer 25

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

Question 26

Cable Certifier

Answer 26

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

Question 27

dirty fiber connector

Answer 27

can cause signal loss. dont smudge the glass

Question 28

dispersion

Answer 28

signal loss for fiber when signal travels too far

Question 29

bend radius limitation

Answer 29

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

Question 30

transceiver mismatch

Answer 30

component might fit, but have the wrong signal

Question 31

cable or fiber mismatch

Answer 31

wrong kind of cable in component

Question 32

wavelength mismatch

Answer 32

different fiber components are designed for different wavelengths

Question 33

OTDR

Answer 33

Optical Time Domain Reflectometer - tests fiber runs - can tell the distance of a break

Question 34

Three biggest problems with fiber

Answer 34

attenuation, light leakage and modal distortion

Question 35

Bonding

Answer 35

using multiple NICs for a single machine | - also called link aggregation

Question 36

LACP

Answer 36

Link Aggregation Control Protocol | - controls how multiple network devices send and receive data as a single connection

Question 37

Link light

Answer 37

Steady on for good connection | flashing for bad connection

Question 38

Activity light

Answer 38

turns on when NIC detects traffic

Question 39

Collision light

Answer 39

turns on when NIC runs into collision

Question 40

First place to check with fiber optic problems?

Answer 40

the connections | - the only place people can touch

Question 41

UPS

Answer 41

Uninterruptible Power Supply - battery backup that plugs into a wall - gives enough power to shut down in an orderly fashion

Question 42

Voltage Event Recorder

Answer 42

Plugs into power outlet and tracks voltage over time