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CCNA 200-301 > Interfaces And Cables > Flashcards

Interfaces And Cables Flashcards

1
Q

1000BASE-LX max. Cable length:

A 
550 meters (multimode)
5 kilometers (single-more)
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2
Q

1000BASE-LX was defined in the IEEE ____ standard.

A

802.3z

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3
Q

10GBASE-ER maximum cable length:

A

30 kilometers

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4
Q

10GBASE-LR maximum cable length:

A

10 kilometers

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5
Q

10GBASE-SR maximum cable length:

A

400 meters

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6
Q

10GBASE-SR, 10GBASE-LR, and 10GBASE-ER were defined in the IEEE ___ standard.

A

802.3ae

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7
Q

___ cables are vulnerable to EMI (electromagnetic interference)

A

UTP

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8
Q

___ cables emit a faint signal outside of the cable, which can be detected and copied.

A

UTP

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9
Q

___ fiber cables allow multiple angles (modes) of light waves to enter the fiberglass core.

A

Multimode

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10
Q

A ___ connection allows both devices to send and receive data at the same same.

A

Full-duplex

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11
Q

Ethernet was originally defined Jen the IEEE ___ standard in 1983

A

802.3

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12
Q

Fiber-optic cables are connected to ___ transceivers in a router or switch.

A

SFP (Small Form-Factor Pluggable)

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13
Q

How many bits are in 1 byte

A

8

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14
Q

How many bits are in 1 gigabit?

A

1,000,000,000 (1 billion)

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15
Q

How many bits are in 1 kilobit?

A

1,000 (1 thousand)

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16
Q

How many bits are in 1 megabit?

A

1,000,000 (1 million)

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17
Q

How many bits are in 1 terabit?

A

1,000,000,000,000 (1 trillion)

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18
Q

How many pairs of wires are used in a 1000BASE-T cable?

A

4 (8 wires)

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19
Q

How many pairs are used in a 100BASE-T cable?

A

2 (4 wires)

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20
Q

How many pairs are used in a 10BASE-T cable?

A

2 (4 wires)

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21
Q

How many pairs are used in a 10GBASE-T cable?

A

4 (8 wires)

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22
Q

How many pins are in a RJ45 connector?

A

8

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23
Q

IEEE standard ___ = 1 Gbps Ethernet (1000BASE-T)

A

802.ab

24
Q

IEEE standard ___ = 10 Gbps Ethernet (10GBASE-T)

A

802.3an

25
Q

IEEE standard ___ = 1 Mbps Ethernet (10BASE-T)

A

802.3i

26
Q

IEEE standard ___ = 100 Mbps Ethernet (100BASE-T)

A

802.3u

27
Q

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

A

Straight-through cable

28
Q

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

A

Straight-through cable

29
Q

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

A

Crossover cable

30
Q

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

A

Crossover cable

31
Q

In ___ fiber cables, light travels straight through the fiberglass core at a single angle.

A

Single-mode

32
Q

In a FastEthernet connection, a firewall receives data on which pins?

A

3 and 6

33
Q

In a FastEthernet connection, a firewall transmits data on which pins?

A

1 and 2

34
Q

In a FastEthernet connection, a PC receives data on which pins?

A

3 and 6

35
Q

In a FastEthernet connection, a PC transmits data on which pins?

A

1 and 2

36
Q

In a FastEthernet connection, a router receives data on which pins?

A

3 and 6

37
Q

In a FastEthernet connection, a router transmits data on which pins?

A

1 and 2

38
Q

In a FastEthernet connection, a switch receives data on which pins?

A

1 and 2

39
Q

In a FastEthernet connection, a switch transmits data on which pins?

A

3 and 6

40
Q

Multimode fiber cables have a ___ fiberglass core than single-mode fiber cables

A

Wider

41
Q

Network speeds are measure in ___ per second.

A

Bits

42
Q

What are the two main kinds of fiber-optic cable?

A

Single-mode and multimode

43
Q

What does UTP stand for?

A

Unshielded Twisted Pair

44
Q

What is the maximum length of an Ethernet UTP cable?

A

100 meters

45
Q

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

A

RJ45

46
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

47
Q

What is the speed of a “10 Gig Ethernet” connection?

A

10 Gbps

48
Q

What is the speed of a “FastEthernet” connection?

A

100 Mbps

49
Q

What is the speed of a “Gigabit Ethernet” connection?

A

1 Gbps

50
Q

What is the speed of an “Ethernet” connection?

A

10 Mbps

51
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

52
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

53
Q

Which allows longer cables, single-mode or multimode fiber?

A

Single-mode

54
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

55
Q

Which is cheaper, single-mode or multimode fiber?

A

Multimode

56
Q

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

A

Pair 1-2 and pair 3-6

57
Q

Why are the wire pairs in a UTP cable twisted together?

A

It protects again EMI (Electromagnetic Interference)

CCNA 200-301 (10 decks)

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