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CCNA 200-301 > Interfaces & Cables > Flashcards

Interfaces & Cables Flashcards

1
Q

RJ45 pin count?

A

8

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2
Q

How many bits in 1 byte?

A

8

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3
Q

How many bits in 1 kilobit?

A

1,000

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4
Q

How many bits in 1 megabit

A

1,000,000

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5
Q

How many bits in 1 gigabit

A

1,000,000,000

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6
Q

What was Ethernet originally defined in? (IEEE standard)

A

802.3

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7
Q

Max length of a Ethernet UTP cable?

A

100 meters

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8
Q

Ethernet connection speed?

A

10Mbps

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9
Q

Fast Ethernet connection speed?

A

100Mbps

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10
Q

Gigabit Ethernet connection speed?

A

1Gbps

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11
Q

10 Gig Ethernet speed?

A

10Gbps

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12
Q

IEEE standard of 10Mbps Ethernet (10Base-T)?

A

802.3i

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13
Q

IEEE standard of 100Mbps Ethernet (100Base-T)?

A

802.3u

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14
Q

IEEE standard of 1Gbps Ethernet (1000Base-T)?

A

802.3ab

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15
Q

IEEE standard of 10Gbps Ethernet (10GBase-T)?

A

802.3an

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16
Q

UTP=?

A

Unshielded Twisted Pair

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17
Q

Why are the wires in UTP twisted?

A

Protects against EMT (Electromagnetic interferences)

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18
Q

How many pairs of wires are there in a 10Base-T cable?

A

2 pairs

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19
Q

How many pairs of wires are there in a 100Base-T cable?

A

2 pairs

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20
Q

How many pairs of wires are there in a 1000Base-T cable?

A

4 pairs

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21
Q

How many pairs of wires are there in a 10GBase-T cable?

A

4 pairs

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22
Q

What allows two devices to send and receive data at the same time?

A

A full duplex

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23
Q

What is the name of the connector on the end of an Ethernet UTP cable?

A

RJ45

24
Q

In a Fast Ethernet connection, a router transmits data on which pins?

A

1 & 2

25
Q

In a fast Ethernet connection, a router receives data in which pins?

A

3 & 6

26
Q

In a fast Ethernet connection, a firewall transmits data on which pins?

A

1 & 2

27
Q

In a fast Ethernet connection, a firewall receives data on which pins?

A

3 & 6

28
Q

In a fast Ethernet connection, a PC transmits data on which pins?

A

1 & 2

29
Q

In a fast Ethernet connection, a PC receives data on which pins?

A

3 & 6

30
Q

In a fast Ethernet connection, a switch transmits data on which pins?

A

3 & 6

31
Q

In a fast Ethernet connection, a switch receives data on which pins?

A

1 & 2

32
Q

If auto MDI-X is disabled, what kind of UTP cable should be used to connect a router and switch?

A

Straight-through cable

33
Q

If auto MDI-X is disabled, what kind of UTP cable should be used to connect a PC to a switch?

A

Straight-through cable

34
Q

If auto MDI-X is disabled, what kind of UTP cable should be used to connect two routers together?

A

Crossover cable

35
Q

If auto MDI-X is disabled, what kind of UTO Cables should be used to connect two switches together?

A

Crossover cable

36
Q

What kind of cable connects a pin pair on one end of a UTP cable to the same pair on the other end?

A

Straight-through cable

37
Q

What kind of cable connects a pin pair on one end of a UTP cable to the opposite pair on the other end?

A

Crossover cable

38
Q

What is the name of the feature that allows a device to automatically adjust which RJ45 pin pairs it uses to transmit and receive data?

A

Auto MDI-X

39
Q

Which two pin pairs are used in a 10Base-T or 100Base-T connection?

A

Pair 1-2

Pair 3-6

40
Q

Which four pin pairs are used in a 1000Base-T or 10GBase-T connection?

A

Pair 1-2
Pair 3-6
Pair 4-5
Pair 7-8

41
Q

Fiber optic cables are connected to what?

A

Transceivers in a router or switch SFP (Small Form-Factor Pluggable)

42
Q

What are the two main kinds of fiber optic cables?

A

Single mode & multi-mode

43
Q

Multi-mode fiber cables have a what?

A

Fiberglass core wider than single mode fiber cables

44
Q

What fiber cable allows multiple angles (modes) of light waves to enter the fiberglass core?

A

Multi-mode

45
Q

Which fiber cable allows longer cables?

A

Single-mode

46
Q

Which is cheaper? Single-mode or multi-mode fiber?

A

Multi-mode

47
Q

What fiber cable allows light to travel straight through the fiberglass core at a single angle?

A

Single-mode

48
Q

10GBase-SR, 10GBase-LR, and 10GBase-ER were defined in the IEEE standard….

A

802.3ae

49
Q

1000Base-LX was defined in the IEEE standard…..

A

802.3z

50
Q

1000Base-LX maximum cable length is what?

A 
550 meters (multi-mode)
5 kilometers (single-mode)
51
Q

10Base-SR maximum cable length?

A

400 meters

52
Q

10GBase-LR maximum cable length?

A

10 kilometers

53
Q

10GBase-ER maximum cable length?

A

30 kilometers

54
Q

What cable emits a faint single outside of the cable, which can be detected and copied?

A

UTP cable

55
Q

What cables are vulnerable to EMI?

A

UTP

56
Q

Network speeds are measured in what?

A

Bits per second

57
Q

How many bits are 1 terabit?

A

1,000,000,000,000

CCNA 200-301 (1 decks)

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