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Network + > Lesson 2 > Flashcards

Lesson 2 Flashcards

1
Q

What is the data conduit for the network

A

Network Media

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2
Q

Network Media

A

conduit for the network

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3
Q

Types of media

A

bound and unbound

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4
Q

Bound Media

A

copper
fiber
Uses a physical conductor Metal Glass Plastic

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5
Q

Unbound Media

A

RF
Wireless
Microwave
IR

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6
Q

Bounded Media conductor types

A

solid or braided

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7
Q

Shielding

A

braided wire or foil

Used to insulate from interference

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8
Q

Twisted Pair

A

UTP

STP

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9
Q

UTP

A

no shielding
contains four pairs
stranded or solid
inexpensive and reliable

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10
Q

STP

A

foil shielding to resist interference
Four Pairs
Stranded or solid core
More expensive

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11
Q

Twisted pair can come in what pairings

A 
2 pair
4 Pair
6 Pair
25 Pair
100 Pair
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12
Q

Color of primary twisted pair wires

A

white and XXX

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13
Q

Color of secondary twisted pair wires

A

solid color

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14
Q

What is the standard range of twisted pair

A

100m

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15
Q

T568A

A 
1  white green
2 green
3 white orange
4 blue
5 blue white
6 orange
7 white brown
8 brown
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16
Q

T568B

A 
1  white orange
2 green
3 white green
4 blue
5 blue white
6 green
7 white brown
8 brown
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17
Q

Can UTP cables be connected together

A

with a UTP coupler

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18
Q

What does RJ stand for

A

Registered Jack

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19
Q

Name parts of coax cable

A

shielding
insulator
conductor

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20
Q

Name RG cable types

A 
RG 59
RG 6
RG 8
RG 58
RG 9
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21
Q

What does RG stand for

A

Radio Guide

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22
Q

Name the different types of Coax connectors

A

F

BNC

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23
Q

Name some other copper cable types

A 
Serial cable
Fire wire
USB
Broadband over power line
HDMI
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24
Q

Topic B

A

Topic B

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25
Q

Name the parts of fiber

A

buffer
coating
cladding
core

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26
Q

what produces the light in fiber

A

led

laser

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27
Q

what are the types of fiber

A

single mode at 9 microns

multimode at 50 microns

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28
Q

What causes refraction

A

change in velocity which is caused by a change in density

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29
Q

angle of incidence

A

angle of reflection

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30
Q

Fiber connectors are

A 
ST
SC 
LC 
MTRJ
FC
FDDI
Biconic
SMA
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31
Q

What are the types of ferrule polish

A

PC -40 db
UPC -55db
APC -70db

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32
Q

distance for twisted pair

A

100m

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33
Q

distance for coax

A

500m

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34
Q

distance for fiber

A

500m for single mode

ultra quality can see 62 miles

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35
Q

Topic C

A

Topic C

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36
Q

What are the network media performance factors

A

Noise
Attenuation
Impedance

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37
Q

Signal to noise ratio decreases or increases with the transmitting distance

A

decreases

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38
Q

Attenuation increase when cable length is exceeded

A

True

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39
Q

What is impedance

A

electrical resistance

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40
Q

Media converter

A

changes signal to accommodate different types of media

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41
Q

Types of media converters

A

multimode to Ethernet
fiber to coax
single mode to multi mode
single mode to Ethernet

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42
Q

Demarcation point

A

f

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43
Q

Backbone wiring

A

f

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44
Q

Equipment room

A

f

45
Q

Telecomm Closet

A

f

46
Q

Horizontal Wiring

A

f

47
Q

Work Area

A

f

48
Q

Premise Wiring

A

collection of cables connector and other devices for LAN and phone equipment. Consists of vertical and horizontal cable runs

49
Q

Premise wire components

A 
Drop cable
Patch panel
Patch cable
Cross connects
Distribution Frames
Wiring closet
50
Q

Which type of cable to use on unlike devices

A

straight through cable

51
Q

Which type of cable to use on like devices

A

cross over cable

52
Q

Which type of cable to use to connect to a router console port

A

roll over cable

53
Q

Types of punch down blocks

A

66 block

110 block

54
Q

66 block

A

low bandwidth transmissions

55
Q

110 block

A

used for structured wiring

high bandwidth

56
Q

Plenum

A

Tightly jacketed network cable to prevent fire from spreading down cable.

Does not emanate poisonous gases when it burns

57
Q

When should you use Plenum

A

In HVAC systems

Structured and suspended ceilings

Under raised floors

In firebreak walls

58
Q

Can non plenum cables run through a fire break

A

no

59
Q

Is PVC plenum

A

no it is not plenum

60
Q

what helps you manage cables

A

Cable management

61
Q

What is used to support cables through cabling routes

A

Cable trays
Cable ladders
Cable Baskets

62
Q

What is used to connect circuits to a network

A

Patch panels

63
Q

All cable labeling is managed through

A

Move/Add/Change or MAC

64
Q

Cable labeling

A

Should be typed not handwritten

Attached to the port

Attached to the cable system, circuit or patch panel

Label should be placed within 12” of each end of the cable.

65
Q

FSAN

A

Pg 88

66
Q

A UPS provides what for the network

A

Backup power

Power Conditioning

Real time monitoring and controlled shut down

67
Q

Other things to consider regarding power management

A

Power converters

Circuits

Inverters

Power redundancy

68
Q

What should be considered with Device placement

A

Proximity to power

Ease of access

Other devices

69
Q

What is the standard rack mount format

A

19 inches

70
Q

Name the two types of racks

A

Two post lightweight for switches

Four post heavy weight for servers

71
Q

Guidelines for Installing Bounded Network Media

A

Pg 91

72
Q

What can cause network interference

A

Radio
TV
Cell Phones
Radar

73
Q

Interference reduces the network reliability and performance

A

True

74
Q

Electrical Noise

A

Unwanted electrical signal present in the network media

75
Q

Name some sources of electrical noise

A

Power wires

Meatal based transmission media

Electric motors

Electrical heat generating devices

Fluorescent lights

76
Q

How do you protect sensitive devices from electrical noise

A

power conditioning

surge protectors

77
Q

What directs high voltages away from humans and equipment

A

Grounding

78
Q

What helps prevent noise on network media conductors

A

Grounding

Shielding

79
Q

What is the connection between ground and shield called

A

Drain

80
Q

Why are shields drained in only one location

A

To prevent a grounding loop

81
Q

Grounding loop

A

When a grounding shield introduces noise in the data signal

82
Q

Cross talk

A

when data wires introduce interference into one another

83
Q

How to alleviate cross talk

A

Introducing numerous twists at regular intervals into the twisted pairs. The more twists the better.

84
Q

Tightness of the twists in twisted pair is called the

A

Twist ratio

85
Q

Can you untwist Cat 5 Cat 3 and Cat 6

A

Cat 5 only 3/8 of an inch

Cat 3 doesn’t matter

Cat 6 connector will not allow it to be untwisted

86
Q

Noise reduction consideration

A

Separate data and electrical cables

Fluorescent lights

Power grounding

Connector installation

Use of other media like fiber

87
Q

What are the twisted pair connectors

A

RJ-45 or RJ-11 (less used is RJ-48)

88
Q

What separates the conductor and shield in coax

A

Dialectric insulator

89
Q

Types of coax cables

A

multiple strand or solid core

90
Q

What does cladding do

A

reflect light back into the fiber

91
Q

Does cladding increase the distance the signal can travel without regeneration

A

Yes

92
Q

Angle of refraction

A

angle the light changes when it leaves one medium and enters the second medium

93
Q

Drop Cable

A

Wire that runs to a PC, printer or other device connected to a network

94
Q

Patch panel

A

connection point for drop and patch cables

95
Q

Patch cable

A

cable that is plugged into the patch panel to connect two drop cables

96
Q

Most patch cable stranded or solid core

A

solid core

97
Q

Cross connects

A

wires that connect two drop cables to a patch panel

Cross connects are rarely used on modern networks

98
Q

Types of cross connects

A

Main cross connects

Intermediate cross connects

Horizontal cross connects

Vertical cross connects

99
Q

Distribution frames

A

devices that terminate cables and enable connections

100
Q

Wiring closet

A

network closet where patch panel are installed

101
Q

Cable to connect unlike devices

A

straight through cable

102
Q

Cable used to like devices

A

cross over cable

103
Q

Cable used to connect to the router’s console port

A

roll over cable

104
Q

Used to connect telephone lines to network lines

A

punch down block

105
Q

Punch down blocks typically support which types of networks

A

low bandwidth networks and token ring networks

106
Q

Which punch down block is used to support higher bandwidth than 66 blocks

A

110 punch down block

107
Q

Free Standing Racks

A

heavier duty racks that don’t need to be bolted to the floor for stability

108
Q

Competed

A

Completed

Network + (13 decks)

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