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netfundies > 2.1 Cabling, tranciever, termination shit > Flashcards

2.1 Cabling, tranciever, termination shit Flashcards

1
Q

RG-6

A

Used for Cable internet/TV
Coaxial
F-connector

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2
Q

RG-59

A

Used for short distances
Coaxial
F-connector

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3
Q

BNC

A

Connector for DS3/T3 WAN coaxial cables

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4
Q

F-connector

A

RG-6, RG-59

CATV/cable modem/DOCSIS modem

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5
Q

RJ-45

A

Ethernet twisted pair, 8 position 8 pin.

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6
Q

RJ-11

A

Telephony twisted pair, 6 position 2 pin.

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7
Q

DB-9

A

RS-232. Used for asynchronous serial communications and connecting to an external modem.

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8
Q

RS-232

A

Serial communications, DB-9/DB-25 connector.

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9
Q

Cat3

A

10 Mbps
10BASE-T
Only 2 pairs.

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10
Q

Cat5

A

(Identical to cat5e)

1 Gbps (1000 Mbps)
1000BASE-T
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11
Q

Cat5e

A

(Identical to cat5)

1 Gbps (1000 Mbps)
1000BASE-T
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12
Q

Cat6

A

10 Gbps up to 55m

10GBASE-T

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13
Q

Cat6a

A

10 Gbps

10GBASE-T

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14
Q

Cat7

A

10 Gbps
10GBASE-T
Additional EMI and crosstalk resistance over cat6a

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15
Q

1000BASE-T

A

“gigabit ethernet”
uses ALL pairs
cat5, cat5e

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16
Q

10GBASE-T

A

cat6, cat6a, cat7

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17
Q

1000BASE-LX

A

1 Gbps fiber optic ethernet;
multi-mode = 550m
single-mode = 5km

18
Q

1000BASE-SX

A

1 Gbps fiber optic ethernet;
220m-500m
usually used for mmf

19
Q

MMF

A

Multimode fiber, shorter range up to 2km.

Often used for server patch cabling.

20
Q

SMF

A

Singlemode fiber, long range up to 100km

21
Q

What two fiber connectors are used to control light loss?

A

UPC

APC

22
Q

UPC

A

Ultrapolished connector, 0 degree angle.

High return loss, lower insertion loss.

23
Q

APC

A

Anglepolished connector, 8 degree angle.

Low return loss, higher inseration loss.

24
Q

ST

A

Straight tip

bayonet connector with long tip and twisted in

25
Q

SC

A

Subscriber Connect/Square

Keyed so it can only go in one way

26
Q

LC

A

Lucent Connector/Little
Can be dual connectors with individuals TX/RX, or single connectors
has “trigger”

27
Q

MT-RJ

A

Mechanical Transfer Registered Jack
Smallest optic connector
Has both TX/RX fibers in same cable
Looks like RJ-45

28
Q

568A has what color first?

A

green

29
Q

568B has what color first?

A

orange

30
Q

What is a straight-through cable used for?

A

Connecting workstations to network devices, patch cables (unlike devices).

31
Q

What is a crossover cable used for?

A

Connecting similar devices.

32
Q

What is Auto-MDI-X?

A

Eliminates the need for straighthrough or crossover cables; crossover done in NIC hardware.

33
Q

What is 66 block?

A

Analogue voice
Needs specialized punchdown tool
No connectors

34
Q

What is 110 block?

A

Wire-to-wire patch panel
Uses cat5/cat6
Needs connector blocks.
RJ45 connectors on other side

35
Q

Duplex fiber transcievers, what is important to know about them?

A

Traffic can only flow one direction on each wire, therefore the transmit and reciever connectors must be reversed on both devices to allow communication.

36
Q

What is BiDi

A

Bi-Directional Transciever;

Fiber optic traffic can go in both directions across a single fiber, less runs needed.

37
Q

What is GBIC

A

Gigabit Interface Converter;

Copper and fiber transciever, large in size

38
Q

What is SFP/SFP+?

A

Small Form-factor Pluggable;
Used for 1 Gbit fiber

SFP+;
Used for 10-16 Gbit networks

39
Q

What is QSFP?

A

Quad Small Form-factor Pluggable;

4 channel SFP in one small connector, x4 the throughput

40
Q

What can be used to save money for fiber optic connections?

A

Using QSFP with Bi-Di transcievers to efficiently transfer data over a single run rather than having multiple runs.

41
Q

100BASE-TX

A

“fast ethernet”

cat5 or better, uses only TWO PAIRS of wires

42
Q

What is the difference between 100BASE-TX and 1000BASE-T?

A

100BASE-TX only uses 4 wires instead of all 8 like 1000BASE-T.

netfundies (19 decks)

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