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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)

24
Q

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

25
IEEE standard ___ = 1 Mbps Ethernet (10BASE-T)
802.3i
26
IEEE standard ___ = 100 Mbps Ethernet (100BASE-T)
802.3u
27
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect a PC and a switch?
Straight-through cable
28
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect a router and a switch?
Straight-through cable
29
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two routers together?
Crossover cable
30
If Auto MDI-X is disabled, what kind of UTP cable should be used to connect two switches together?
Crossover cable
31
In ___ fiber cables, light travels straight through the fiberglass core at a single angle.
Single-mode
32
In a FastEthernet connection, a firewall receives data on which pins?
3 and 6
33
In a FastEthernet connection, a firewall transmits data on which pins?
1 and 2
34
In a FastEthernet connection, a PC receives data on which pins?
3 and 6
35
In a FastEthernet connection, a PC transmits data on which pins?
1 and 2
36
In a FastEthernet connection, a router receives data on which pins?
3 and 6
37
In a FastEthernet connection, a router transmits data on which pins?
1 and 2
38
In a FastEthernet connection, a switch receives data on which pins?
1 and 2
39
In a FastEthernet connection, a switch transmits data on which pins?
3 and 6
40
Multimode fiber cables have a ___ fiberglass core than single-mode fiber cables
Wider
41
Network speeds are measure in ___ per second.
Bits
42
What are the two main kinds of fiber-optic cable?
Single-mode and multimode
43
What does UTP stand for?
Unshielded Twisted Pair
44
What is the maximum length of an Ethernet UTP cable?
100 meters
45
What is the name of the connector on the end of an Ethernet UTP cable?
RJ45
46
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?
Auto MDI-X
47
What is the speed of a “10 Gig Ethernet” connection?
10 Gbps
48
What is the speed of a “FastEthernet” connection?
100 Mbps
49
What is the speed of a “Gigabit Ethernet” connection?
1 Gbps
50
What is the speed of an “Ethernet” connection?
10 Mbps
51
What kind of cable connects a pin pair on one end of a UTP cable to the opposite pair on the other end?
Crossover cable
52
What kind of cable connects a pin pair on one end of a UTP cable to the same pair on the other end?
Straight-through cable
53
Which allows longer cables, single-mode or multimode fiber?
Single-mode
54
Which four pin pairs are used in a 1000BASE-T or 10GBASE-T connection?
Pair 1-2, pair 3-6, pair 4-5, pair 7-8
55
Which is cheaper, single-mode or multimode fiber?
Multimode
56
Which two pin pairs are used in a 10BASE-T or 100BASE-T connection?
Pair 1-2 and pair 3-6
57
Why are the wire pairs in a UTP cable twisted together?
It protects again EMI (Electromagnetic Interference)

CCNA 200-301 (10 decks)

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