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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?

24
Q

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

25
In a fast Ethernet connection, a router receives data in which pins?
3 & 6
26
In a fast Ethernet connection, a firewall transmits data on which pins?
1 & 2
27
In a fast Ethernet connection, a firewall receives data on which pins?
3 & 6
28
In a fast Ethernet connection, a PC transmits data on which pins?
1 & 2
29
In a fast Ethernet connection, a PC receives data on which pins?
3 & 6
30
In a fast Ethernet connection, a switch transmits data on which pins?
3 & 6
31
In a fast Ethernet connection, a switch receives data on which pins?
1 & 2
32
If auto MDI-X is disabled, what kind of UTP cable should be used to connect a router and switch?
Straight-through cable
33
If auto MDI-X is disabled, what kind of UTP cable should be used to connect a PC to a switch?
Straight-through cable
34
If auto MDI-X is disabled, what kind of UTP cable should be used to connect two routers together?
Crossover cable
35
If auto MDI-X is disabled, what kind of UTO Cables should be used to connect two switches together?
Crossover cable
36
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
37
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
38
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
39
Which two pin pairs are used in a 10Base-T or 100Base-T connection?
Pair 1-2 | Pair 3-6
40
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
41
Fiber optic cables are connected to what?
Transceivers in a router or switch SFP (Small Form-Factor Pluggable)
42
What are the two main kinds of fiber optic cables?
Single mode & multi-mode
43
Multi-mode fiber cables have a what?
Fiberglass core wider than single mode fiber cables
44
What fiber cable allows multiple angles (modes) of light waves to enter the fiberglass core?
Multi-mode
45
Which fiber cable allows longer cables?
Single-mode
46
Which is cheaper? Single-mode or multi-mode fiber?
Multi-mode
47
What fiber cable allows light to travel straight through the fiberglass core at a single angle?
Single-mode
48
10GBase-SR, 10GBase-LR, and 10GBase-ER were defined in the IEEE standard....
802.3ae
49
1000Base-LX was defined in the IEEE standard.....
802.3z
50
1000Base-LX maximum cable length is what?
``` 550 meters (multi-mode) 5 kilometers (single-mode) ```
51
10Base-SR maximum cable length?
400 meters
52
10GBase-LR maximum cable length?
10 kilometers
53
10GBase-ER maximum cable length?
30 kilometers
54
What cable emits a faint single outside of the cable, which can be detected and copied?
UTP cable
55
What cables are vulnerable to EMI?
UTP
56
Network speeds are measured in what?
Bits per second
57
How many bits are 1 terabit?
1,000,000,000,000

CCNA 200-301 (1 decks)

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