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N+ > Physical Media > Flashcards

Physical Media Flashcards

1
Q

Data Terminal Equipment (DTE)

A

Endpoint devices that connect to a piece of data communications equipment or DCE

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2
Q

Data Communications Equipment (DCE)

A

Router, switch, ect

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3
Q

Wiring scheme for 568B

A
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4
Q

Medium Dependent Interface Crossover (MDIX)

A

Automated way to electronically simulate a crossover cable connector even if using a straight-through

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5
Q

Define Single Mode Fiber (SMF)

A

*Longer distances and has
*Smaller core size
*SIngle mode of travel for the light signal.

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6
Q

Define Multi Mode Fiber (MMF)

A

*Used for shorter distances
*Has larger core size
*Allows for multiple modes of travel for the light signal

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7
Q

What is Half-Duplex mode?

A

Device can listen or talk, but not at the same time.

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8
Q

What is Full-Duplex mode?

A

Device can listen and talk at the same time.

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9
Q

Which Ethernet standard maximum cable length is less than 100 meters?

A

CAT 6 at 10GBASE-T
CAT 8

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10
Q

What can a Cable Tester identify?

A

Breaks
Pinout (straight/cross over)
Multiple types of cable (coax, rj11, ect)

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11
Q

What can a Wire Mapper identify?

A

Breaks
Pinout with specific types of issues
*Open Pair
*Short Piars
*Short Between pairs
ect

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12
Q

What can a Cable Certifies identify?

A

CAT type
Length
Throughput
Pinout

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13
Q

What can a Multi Meter identify?

A

Volts
AMPS
Resistance
Breaks

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14
Q

What can a Tone Generator identify?

A

Where cables are running
Identify and unlabeled cable run

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15
Q

What can a Time Domain Reflectometer identify?

A

Breaks in copper
Severity of break
Distance of break

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16
Q

What can an Optical Time Domain Reflectometer identify?

A

Breaks in fiber
Severity of break
Distance of break

17
Q

What can a Fiber Light Meter identify?

A

Attenuation

18
Q

Optical Link Budget

A

A calculation that considers al the anticipated losses along the length of a fiber optic connection

19
Q

10BASE-T
What does the T indicate?

A

Twisted Pair

20
Q

CAT 3

A

10BASE-T
10 Mbps
100 meter

21
Q

Cat 5

A

100BASE-T
100 Mbps
100 meter

22
Q

CAT 5e

A

1000BASE-T
1000 Mbps
100 meter

23
Q

CAT 6

A

1000BASE-T
1000 Mbps
100 meter
-or-
10GBASE-T
10 Gbps
55 meter

24
Q

CAT 6a

A

10GBASE-T
10 Gbps
100 meter

25
Q

CAT 7

A

10GBASE-T
10 Gbps
100 meter

26
Q

CAT 8

A

40GBASE-T
40 Gbps
30 meter

27
Q

Tricks for twisted pair cable

A

*From CAT 3 to CAT 7 multiply by 10 to get standard and bandwidth (CAT 8 multiplies by 4)
*Always 100 meters except:
-CAT 6 at 10G is 55 meters
-CAT 8 is 30 meters

28
Q

SC
Subscriber Connector

A

Stick and click
Square connector
usually in pairs

29
Q

ST
Straight Tip Connector

A

Stick and twist

30
Q

LC
Lucent Connector

A

Love Connector
Pair is always connected

31
Q

MTRJ
Mechanical Transfer Registered Jack

A

Usually on fiber switches

N+ (22 decks)

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