Cabling

Question 1

RG-6

Answer 1

Very thick version of a coaxial cable; used by the ISP to get internet to your home

Question 2

RG-59

Answer 2

Used inside your home; composite video or outlet to cable modem

Question 3

F-type connectors and BNC connectors

Answer 3

Screw on connectors for coaxial; BNC you lock and turn to put in

Question 4

UTP (Unshielded Twisted Pair)

Answer 4

Much cheaper; no metal in shielding; media of choice because of cost and ease of use

Question 5

STP (Shielded Twisted Pair)

Answer 5

Metal shielding that helps minimize EMI; costs more; can go 100m or about 300 feet

Question 6

RJ45

Answer 6

This the connector type for ethernet networks

Question 7

RJ11

Answer 7

6 pin connector used for phones; only 2 pins are used; voip or cable networks could use this

Question 8

Bandwidth

Answer 8

Theoretical measure of how much data could be transferred from a source to its destination

Question 9

Throughput

Answer 9

Actual measure of how much data transferred from a source to its destination

Question 10

CAT 3

Answer 10

Standard: 10BASE-T (T is for Twisted pair)
10 Mbps
100 Meters

Question 11

CAT 5 (Fast Ethernet)

Answer 11

100BASE-TX
100 Mbps
100 meters

Question 12

Cat 5e (Gigabit Ethernet)

Answer 12

1000BASE-T
1000 Mbps (1 Gbps)
100 meters

Question 13

CAT 6

Answer 13

can either be 1000BASE-T or 10GBASE-T
1000 Mbps (1 Gbps) or 10 Gbps
100 meters or 55 meters

Question 14

Cat 6a

Answer 14

10GBASE-T
10 Gbps
100 Meters

Question 15

CAT 7

Answer 15

10GBASE-T
10 Gbps
100 meters

Question 16

Straight-Through Cable (Patch Cable)

Answer 16

Contains the exact same pinout on both ends of the cable

Question 17

What wiring scheme is mainly used for straight-through patch cables?

Answer 17

T568B

Question 18

What is the color scheme for T568B?

Answer 18

orange white, orange, green white, blue, blue white, green, brown white, brown

Question 19

If you want to connect a switch to another switch, what kind of cable do you use?

Answer 19

Crossover cable

Question 20

What is a crossover cable?

Answer 20

T568A to T568B

Question 21

What is Medium Dependent Interface Crossover? (MDIX)

Answer 21

An automated way to electronically simulate a crossover cable connector even if using a straight-through patch cable

Question 22

What is the wiring standard for 568B?

Answer 22

Same as 568A except you switch out pins one, two, three and six (orange and green pairs swapping places)

Question 23

Plenum

Answer 23

fire retardant chemical layer to the outer insulating jacket; used anytime you’re putting cable in a place you can’t see like ceilings or walls

Question 24

What is a Single Mode Fiber (SMF) Fiber Optic Cable?

Answer 24

Used for longer distances and has smaller core size which allows for only a single mode of travel for the light signal; core size is 8.3-10u in diameter

Question 25

What is Multimode Fiber (MMF)?

Answer 25

Used for shorter distances and has larger core size which allows for multiple modes of travel for the light signal; any place you would typically use a straight through patch cable is where you might use a MMF; remember three things: larger core size, covers shorter distances, less expensive (it's the exact opposite for SMF) (yellow sheath is usually SMF)

Question 26

What is SC (Subscriber Connecter) in fiber optic cabling?

Answer 26

low cost, durable, easy to install; stick and click; looks like an optical cable

Question 27

ST (Straight Tip) connector for fiber

Answer 27

Stick and Twist; no click, but twist and lock

Question 28

LC connector

Answer 28

lucent connector; love connector; it has two identical things side to side; always married together

Question 29

MTRJ

Answer 29

mechanical transfer registered jack (half the size of the others); two prongs

Question 30

Two different types of connectors for fiber

Answer 30

Angled Physical Contact (APC) Connector - angled at 8 degrees and light is reflected into the clouding of the cable (connector is green) Ultra Physical Contact (UPC) Connector - no angling, more curvature; better alignment; more noise and some signal loss (connector is blue)

Question 31

What is Wavelength Division Multiplexing (WDM)?

Answer 31

Combines multiple signals into one signal and sends over a single fiber optic strand using different wavelengths of the laser light source

Question 32

Coarse WDM (CWDM)

Answer 32

up to 18 channels 20 nm channel distance speed up to 10 Gbps (Ethernet) and 16 Gbps (Fiber)

Question 33

Dense WDM (DWDM)

Answer 33

up to 80 channels 0.8nm channel distance up to 8 Tbps (100 Gbps/channel)

Question 34

Media Converter

Answer 34

Converts fiber optic to copper or the opposite; can also be done with coax

Question 35

Bidirectional

Answer 35

known as half duplex; like using a walkie talkie

Question 36

duplex

Answer 36

aka full duplex; allows both devices to communicate at the same time. Like a telephone conversation

Question 37

small form-factor pluggable (SFP) transceiver

Answer 37

up to 4.2 Gbpbs

Question 38

SFP+

Answer 38

up to 16 gbps

Question 39

quad small form factor pluggable (QSFP)

Answer 39

up to 40 gbps

Question 40

QSFP+

Answer 40

up to 41.2 gbps

Question 41

QSFP28

Answer 41

up to 100 gbps

Question 42

QSFP56

Answer 42

up to 200 gbps

Question 43

demarcation point

Answer 43

where you isp's service connection ends and yours begins

Question 44

backbone switch

Answer 44

everything in your network connects to it

Question 45

edge switch

Answer 45

this is a switch that connects to your backbone switch (use trunk lines)

Question 46

Main Distribution Frame (MDF)

Answer 46

a telco closet which serves as the main starting point for all starting cabling

Question 47

IDF (Intermediate Distribution Frame)

Answer 47

smaller than MDF; contains an edge switch, patch panel and other associate equipment to support the floor and offices nearest to it

Question 48

Patch Panel

Answer 48

keeps your cabling organized

Question 49

toner probe

Answer 49

use it to find the correct cable that's plugged into the wall jack and patch panel; find breaks int he wire