Chapter 5: Modern Ethernet Flashcards Preview

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Flashcards in Chapter 5: Modern Ethernet Deck (24):
1

What standard does IEEE 802.3ab describe?

1000BaseT

2

How many pairs of wires do 10BaseT and 100BaseT use?

2

3

How many wire pairs does 1000BaseT use?

4

4

Fill in the following qualities of 100BaseTX:

1) Speed
2) Signal Type
3) Distance
4) Node Limit
5) Topology
6) Cable Type
7) Connector

1) 100 Mbps
2) Baseband
3) 100m
4) 1024/hub or switch
5) Star bus
6) CAT5 or better
7) RJ-45

5

Which network standard is known as "Fast Ethernet"?

100BaseTX

6

What does it mean if a network is baseband?

Only a single signal travels over the wires of the network at one time.

7

What does it mean for a network to be broadband?

Multiple signals travel over the wires of the network at one time.

8

Fill in the following qualities of 100BaseFX

1) Speed
2) Signal Type
3) Distance
4) Node Limit
5) Topology
6) Cable Type
7) Connector

1) 100 Mbps
2) Baseband
3) 2 km
4) 1024/hub or switch
5) Star bus
6) Multimode Fiber
7) ST or SC

9

Which network standard is referred to as "Gigabit Ethernet"?

1000BaseT

10

Fill in the following qualities of 1000BaseT

1) Speed
2) Signal Type
3) Distance
4) Node Limit
5) Topology
6) Cable Type
7) Connector

1) 1000 Mbps (1Gbps)
2) Baseband
3) 100m
4) 1024/hub or switch
5) Star bus
6) CAT5e or better
7) RJ-45

11

What are twinax cables?

Special shielded 150-Ohm cables with a length limit of 25m

12

Fill in the following qualities for 1000BaseCX

1) Cabling
2) Connector
3) Max Distance

1) Copper/Twinax
2) Twinax
3) 25m

13

Fill in the following qualities for 1000BaseSX

1) Cabling
2) Connector
3) Max Distance

1) Mulitmode Fiber (850nm)
2) LC
3) 220-500m

14

Fill in the following qualities for 1000BaseLX:

1) Cabling
2) Connector
3) Max Distance

1) Single-mode Fiber (1300nm)
2) LC or SC
3) 5 km

15

What are two types of Small Form Factor (SFF) connectors?

1) LC connectors
2) Mechanical Transfer Registered Jack (MT-RJ)

16

Physical Contact (PC) connector

The standard fiber connector type

17

Ultra Physical Contact (UPC) connector

A PC connector that is polished extensively, reducing signal loss.

18

Angled Physical Contact (APC) connector

A PC connector that adds an 8-degree angle to the curved end, lowering signal loss.

19

Media Converter

A box used to connect any type of Ethernet cabling together

20

For a basic 10Gbe standard, what do X and Y specify in the following: 10GBaseXY

X = Type of fiber and wavelength
Y = Physical layer signaling standard

21

In 10GBaseXY, what are the possible values of X and what do they indicate?

S => Short Wavelength (850nm), Multimode Fiber

L => Long Wavelength (1310nm), Singlemode Fiber

E => Extra Long Wavelength (1550nm), Singlemode Fiber

22

In 10GBaseXY, what are the possible values of Y and what do they indicate?

R => LAN-based network

W => SONET/WAN-based network

23

Multisource Agreements (MSAs)

Agreements among multiple manufacturers to make interoperable devices and standards.

24

Backbone Network

A part of computer network infrastructure that interconnects various pieces of network, providing a path for the exchange of information between different LANs or subnetworks.