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Network+ > Section 1.3 > Flashcards

Section 1.3 Flashcards

1
Q

Cat 3
speed
distance
cable

A

10Mbps
100m
UTP

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2
Q

Cat 5
speed
distance
cable

A

100Mbps
100m
UTP

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3
Q

Cat 5e
speed
distance
cable

A

1Gbps
100m
UTP

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4
Q

Cat 6
speed
distance
cable

A

1Gbps
100m
UTP/STP

10Gbps
55m
UTP/STP

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5
Q

Cat 6a
speed
distance
cable

A

10Gbps
100m
STP

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6
Q

Cat 7
speed
distance
cable

A

10Gbps
100m
S/FTP

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7
Q

Cat 8
speed
distance
cable

A

25-40Gbps
30m
S/FTP

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8
Q

List all categories of ethernet cables

A

Cat 3, 5, 5e, 6, 6a, 7, and 8

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9
Q

What does UTP stand for?

A

Unshielded Twisted Pair

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10
Q

What does STP stand for?

A

Shielded Twisted Pair

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11
Q

What does S/FTP stand for?

A

Shielded and Foiled Twisted Pair

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12
Q

List the 5 ethernet transmission standards.

A

10BASE-T
100BASE-TX
1000BASE-T
10GBASE-T
40GBASE-T

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13
Q

Which ethernet cables use the 1000BASE-T ethernet transmission standard?

A

Cat 5 and 5e

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14
Q

Which ethernet cables use the 10GBASE-T ethernet transmission standard?

A

Cat 6, 6a, and 7

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15
Q

Which ethernet cables use the 40GBASE-T ethernet transmission standard?

A

Cat 8

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16
Q

What’s the technical term for the common coaxial cable used for tv and internet?

A

RG-6

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17
Q

What’s the difference in speed and distance between coaxial and twinaxial cables?

A

Coax: 1Gbps, 150m
Twinax: 10Gbps, 15m

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18
Q

Which ethernet cables use the 10BASE-T ethernet transmission standard?

A

Cat 3

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19
Q

Which ethernet cables use the 100BASE-TX ethernet transmission standard?

A

Cat 5

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20
Q

What are the ISO/IEC 11801 and ANSI/TIA-568?, and what’s the difference?

A

ISO/IEC 11801 is the international structured cabling system standard

ANSI/TIA-568 is the US based structured cabling system standard

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21
Q

Which ethernet cable standard starts with white and green?

A

T568A

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22
Q

Which ethernet cable standard starts with white and orange?

A

T568B

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23
Q

What are the colors of a T568A ethernet cable?

A

1 white and green
2 green
3 white and orange
4 blue
5 white and blue
6 orange
7 white and brown
8 brown

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24
Q

What are the colors of a T568B ethernet cable?

A

1 white and orange
2 orange
3 white and green
4 blue
5 white and blue
6 green
7 white and brown
8 brown

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25
Q

Which pins of both T568A and T568B are identical?

A

Pins 4, 5, 7, and 8

26
Q

What type of light is used for single-mode fiber, and what’s the max distance?

A

Laser, 100km

27
Q

What type of light is used for multi-mode fiber, and what’s the max distance?

A

LED, 2km

28
Q

LC, its use, and connector style?

A

Local Connector, used for fiber, latch style

29
Q

ST, its use, and connector style?

A

Straight Tip, used for fiber, bayonet style twist on/off

30
Q

SC, its use, and connector style?

A

Subscriber Connector, used for fiber, push-pull snapping style

31
Q

MT-RJ, its use, and connector style?

A

Mechanical Transfer Registered Jack, used for dual-fiber, latch style

32
Q

RJ, its use, and connector style?

A

Registered Jack, used for copper, latch style

33
Q

Why use APC instead of UPC for fiber? What do these stand for?

A

Angle-Physical Contact and Ultra-Physical Contact. APC has an 8 degree angle to reflect light away, lowering return loss. UPC is flat, so there is more return loss from reflected light.

34
Q

What are RJ11 connectors commonly used for?

A

Telephone and DSL

35
Q

What type of connector is used for coaxial/RG-6 cables?

A

F-connector

36
Q

How do you convert copper signals to fiber and vice versa?

A

using a Media Convertor

37
Q

What are transceivers?

A

They are basically media convertors that plug-in into network devices.

38
Q

How many connections are in a basic transceiver and what do they do?

A

There are usually 2 connections. One for transmit and one for receive.

39
Q

What type of transceiver is used to transmit and receive on a single fiber? And how is this done?

A

BiDi, or Bi-Directional transceivers. The fiber carries two different wavelengths.

40
Q

What does SFP stand for?

A

Small Form-factor Pluggable

41
Q

What’s the bandwidth of SFP?

A

1 Gbps

42
Q

What’s the bandwidth of SFP+?

A

10 Gbps

43
Q

What’s the bandwidth of QSFP?

A

4 Gbps

44
Q

What does QSFP stand for?

A

Quad Small Form-factor Pluggable

45
Q

What’s the bandwidth of QSFP+?

A

40 Gbps

46
Q

Could you increase efficiency beyond QSFP and QSFP+? How?

A

Yes, by using BiDi QSFP and QSFP+ transceivers

47
Q

What does the + in SFP+ and QSFP+ stand for?

A

Enhanced

48
Q

Why is a patch panel/bay useful?

A

Because it allows you to organize all of the network cabling in one central location.

49
Q

What is the patch panel equivalent for fiber optics called?

A

Fiber Distribution Panel

50
Q

What are the differences between 66, 110, Krone, and BIX punchdown blocks?

A

66 Block is older and used primarily for voice communications up to Cat 3.

110 Block is used for modern data networks up to Cat 5e and 6.

Krone Block is the European standard similar to 110 Block.

BIX is the Canadian standard also similar to 110 Block.

51
Q

100BASE-FX
speed
distance
mode

A

100Mbps
short distance
multimode fiber

52
Q

100BASE-SX
speed
distance
mode

A

100Mbps
short distance
multimode fiber

53
Q

1000BASE-SX
speed
distance
mode

A

1Gbps
short distance
multimode fiber

54
Q

1000BASE-LX
speed
distance
mode

A

1Gbps
long distance
singlemode fiber

55
Q

10GBASE-SR
speed
distance
mode

A

10Gbps
short distance
multimode fiber

56
Q

10GBASE-LR
speed
distance
mode

A

10Gbps
long distance
singlemode fiber

57
Q

What do CWDM and DWDM stand for?

A

Coarse Wavelength Division Multiplexing

Dense Wavelength Division Multiplexing

58
Q

What’s the difference between CWDM and DWDM? Spacing, Channels, and Distance type?

A

CWDM: 20nm wavelength spacing resulting in up to 18 channels, good for shorter distances

DWDM: 0.8nm wavelength spacing resulting in up to 160 channels, good for longer distances

59
Q

Fiber Speed standards

A

100/1000/10G/40G/100G

60
Q

Fiber Distance standards

A

S = Short
L = Long
E = Extended
Z = Very Extended

61
Q

Fiber Mode standards

A

S/F = Multimode
L/E/Z = Singlemode

Network+ (20 decks)

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