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CCNA > Network Devices > Flashcards

Network Devices Flashcards

1
Q

Multimode Fiber cables have a […] fiberglass core than single-mode fiber cables.

A

Wider

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2
Q

10GBASE-LR maximum cable length:

A

10 kilometers

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3
Q

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

A

2 (=4 wires)

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4
Q

What is the speed of a ‘10 Gig Ethernet’ connection?

A

10 GBps

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5
Q

In a Fast Ethernet connection, a firewall transmits data on which pins […]

A

1 and 2

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6
Q

In a Fast Ethernet connection, a router receives data on which pins […]

A

3 and 6

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7
Q

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

A

crossover cable

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8
Q

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

A

Single-mode and multimode

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9
Q

Network speeds are measured in […] per second.

A

bits

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10
Q

What is the speed of an ‘Ethernet’ connection?

A

10 Mbps

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11
Q

In a FastEthernet connection, a PC receives data on which pins […]

A

3 and 6

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12
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

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13
Q

IEEE standard […] = 1 Gbps Ethernet (1000BASE-T)

A

802.3ab

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14
Q

10GBASE-ER maximum cable length:

A

30 kilometers

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15
Q

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

A

4 (=8 wires)

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16
Q

What is the speed of a ‘Gigabit Ethernet’ connection?

A

1 GBps

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17
Q

Ethernet was originally defined in the IEEE […] standard in 1983.

A

802.3

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18
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

19
Q

Which is cheaper, single-mode or multimode fiber?

A

multimode

20
Q

How many bits are in 1 byte?

A

8

21
Q

IEEE standard […] = 10 Mbps Ethernet (10BASE-T)

A

802.3i

22
Q

In a FastEthernet connection, a firewall receives data on which pins […]

A

3 and 6

23
Q

10GBASE-SR maximum cable length:

A

400 meters

24
Q

[…] cables are vulnerable to EMI (electromagnetic interference).

A

UTP

25
Q

10GBASE-SR, 10GBASE-LR, and 10GBASE-ER were defined in the IEEE […] standard.

A

802.3ae

26
Q

10GBASE-LR maximum cable length:

A

10 kilometers

27
Q

A […] connection allows both devices to send and receive data at the same time.

A

full-duplex

28
Q

What is the speed of a ‘FastEthernet’ connection?

A

100 Mbps

29
Q

1000BASE-LX maximum cable length:

A

550 meters (multimode)
5 kilometers (single-mode)

30
Q

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

A

UTP

31
Q

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

A

crossover cable

32
Q

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

A

RJ45

33
Q

How many bits are in 1 megabit?

A

1,000,000 (1 million)

34
Q

What is the maximum length of an Ethernet UTP cable?

A

100 meters

35
Q

IEEE standard […] = 100 Mbps Ethernet (100BASE-T)

A

802.3u

36
Q

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

A

Pair 1-2, Pair3-6

37
Q

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

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

IEEE standard […] = 10 Gbps Ethernet (10GBASE-T)

A

802.3an

40
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

41
Q

How many bits are in 1 kilobit?

A

1,000 (one thousand)

42
Q

How many bits are in 1 gigabit?

A

1,000,000,000 (1 billion)

43
Q

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

A

single-mode

44
Q

10GBASE-SR maximum cable length:

A

400 meters

CCNA (2 decks)

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