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Network+ > Ethernet, Fiber, Copper > Flashcards

Ethernet, Fiber, Copper Flashcards

1
Q

What does the following describe?

Most popular, standard, universal
many different types, speeds, cabling, connectors, equipment
Most modern ethernet uses twisted pair of copper or fiber

A

Ethernet

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2
Q

What is 802.3

A

IEEE Ethernet standard

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3
Q

What does the following describe?

Transmission by light
No RF signal, difficult to tap
Transmission over long distances
Immune to RF interference
Laser beams can replace light for extremely long distances

A

Fiber

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4
Q

What type of cabling is the following signal referring to

trasmit+ transmit- / receive+ receive-

A

Twisted Pair Copper Cabling

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5
Q

Why is the twist important in twisted pair?

A

the twist keeps a single wire moving away from the other to prevent interference.

Pairs in a cable will have different twist rates as well

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6
Q

Coaxial Cable

A

two or more forms share a common axis
RG-6 used in television/digital cable, high speed intenet over cable

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7
Q

Two inner conductors in a cable is known as

A

Twinaxial cable

lower cost than fiber
lower latency than twisted pair

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8
Q

What’s the space between the ceiling and the false ceiling below it?

A

Plenum space, which contains air vents and electrical wiring.

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9
Q

What type of jacket is on most traditional cables?

A

PVC

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10
Q

What type of jacket is required on plenum rated cable?

A

FEP or low smoke PVC

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11
Q

What is a challenge with plenum rated cable?

A

not as flexible

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12
Q

Transceiver is a combination of what two words

A

transmitter and receiver, usually combined into a single component

modular interface, add the transceiver that matches your network

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13
Q

Are ethernet channel and fiber channel tranceivers interchangeable?

A

no

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14
Q

What is SFP?

A

Small Form-factor Pluggable

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15
Q

If you have a 10 gb connection, what SFP are you using?

A

SFP+, SFP only supports up to 1gbit/s
SFP+ supports up to 16gbit/s

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16
Q

How can we maximize space when using SFP connectors?

A

use a QSFP, Quad Small Form-factor Pluggable, which is a 4 channel SFP quadrupling the throughput

17
Q

What tranceiver types are these?

A

SFP/SFP+ and QSFP/QSFP+

18
Q

what type of connector is an SC Connector?

A

Subscriber Connector, Square Connector, Standard Connector

19
Q

How to SC connectors install and uninstall?

A

push to lock, pull shroud to unlock.

20
Q

what type of connector is this and what is it used for?

A

SC Connector for fiber optics.

21
Q

Why are SC Connectors often combined into a pair?

A

One will be transmit, the other will be receive

22
Q

What connector is this and what it is used for?

A

LC- Local Connector, fiber connector.

23
Q

What are the differences between SC and LC connectors?

A

LC is smaller

24
Q

What are 2 other names for LC - local connectors?

A

Little and Lucent

25
Q

True/False

LC can also be paired for transmit and receive

A

True

26
Q

What connector is this and what is it for?

How is it installed?

A

ST - Straight Tip, used for fiber optics.

Stick and twist

27
Q

What connector is this and what is it used for?

A

MPO - Multi-fiber Push On

28
Q

What is the purpose of MPO?

A

Space efficient fiber connector, it contains 12 individual fibers in one connector.

Also called MTP by manufacturer Corning, the “MTP MPO connector”

29
Q

What is this connector?

A

RJ11

30
Q

What is RJ-11 used for?

A

Telephone and DSL

31
Q

How many positions are available in an RJ-11?
How many are used?

A

6 available
2 used

32
Q

What connector is this?

A

RJ45

33
Q

What is RJ45 used for?

A

Ethernet

34
Q

How many pins does RJ45 have?

A

8

35
Q

What is this cable?

A

F Connector, Coaxial cable

36
Q

What is F-Connector cable used for?
What is another name for it?

A

Cable television, cable modem
DOCSIS

37
Q

What is this connector?

A

BNC Connector
Bayonet Neill-Concelman

Coaxial cable connector, twist lock

38
Q

What connector does the following describe?

Coaxial Cable Connector
Common with twinax and DS3 WAN links, as well as video connections

A

BNC Connector

39
Q

What interface is this?

A

BNC

Network+ (12 decks)

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