Copper/Fiber Standards

Question 1

What speed does 10BASE-T run at?

Answer 1

10 Mbps

Question 2

If a standard has “BASE” in its name, its signal type is…

Answer 2

Baseband

Question 3

What is the distance limit for 10BASE-T?

Answer 3

100 meters

Question 4

What is the node limit for 10BASE-T?

Answer 4

1,024 nodes per hub

Question 5

What topology do many standards use?

Answer 5

Star-bus

Question 6

What connectors does 10BASE-T use?

Answer 6

RJ-45

Question 7

What cabling does 10BASE-T use?

Answer 7

Cat 3 or better UTP

Question 8

What are the 5 copper standards you need to know listed in order?

Answer 8

1) 10 BASE-T
2) 100 BASE-T (TX)
3) 1000 BASE-T
4) 10G BASE-T
5) 40G BASE-T

Question 9

What are the 6 fiber optic standards you need to know listed in order?

Answer 9

1) 100 BASE-FX
2) 100 BASE-SX
3) 1000 BASE-SX
4) 1000 BASE-LX
5) 10G BASE-SR
6) 10G BASE-LR

Question 10

The 100BASE-T is very similar to 10BASE-T aside from what two categories?

Answer 10

Speed & Cable Type

Question 11

What is 100BASE-T’s speed?

Answer 11

100 Mbps

Question 12

What is 100BASE-T’s cable type?

Answer 12

CAT 5 or better UTP/STP cabling

Question 13

What standard is often referred to as “Gigabit Ethernet”?

Answer 13

1000BASE-T

Question 14

What speed does any standard with the “1000BASE” preposition run at?

Answer 14

1 Gbps

Question 15

What is the distance limit for 1000BASE-T?

Answer 15

100 meters

Question 16

How many pairs and at what duplex is 1000BASE-T’s cabling running?

Answer 16

Four Pair / Full Duplex

Question 17

What connectors does 1000BASE-T use?

Answer 17

RJ-45

Question 18

What cabling does 1000BASE-T use?

Answer 18

Cat 5 or better UTP or STP

Question 19

If a standard has a “__GBASE” preposition, what units are you measuring in now?

Answer 19

Gbps

Question 20

What cabling does 10GBASE-T use?

Answer 20

Cat 6/6a UTP

Question 21

Four out of the five copper standards have a distance limit of 100 meters. (True/False)

Answer 21

True

Question 22

What copper standard has a distance limit much shorter than 100 meters?

Answer 22

40GBASE-T

Question 23

What is 40GBASE-T’s distance limit?

Answer 23

30 meters

Question 24

RJ-45s are not used for connectors in all copper standards. (True/False)

Answer 24

False; All five copper standards use RJ-45 connectors

Question 25

What is the first and earliest fiber optic standard you need to know?

Answer 25

100BASE-FX

Question 26

What is 100BASE-FX's distance limit?

Answer 26

2 kilometers

Question 27

What is 100BASE-FX's node limit?

Answer 27

1,024 nodes

Question 28

What cabling does 100BASE-FX use?

Answer 28

MMF (generally OM1)

Question 29

What two connectors does 100BASE-FX use?

Answer 29

ST or SC connectors

Question 30

What standard is the short-distance LED alternative to 100BASE-FX?

Answer 30

100BASE-SX

Question 31

What has a longer distance range, 100BASE-FX or 100BASE-SX?

Answer 31

100BASE-FX

Question 32

What three connectors can 100BASE-SX use?

Answer 32

ST, SC, or LC

Question 33

What cabling and wavelength measurements pertain to 100BASE-SX?

Answer 33

OM1/OM2 @ 850 nm

Question 34

The third fiber optic standard has the same name as the second except it is running at a 1 Gbps speed. (True/False)

Answer 34

True; It is 1000BASE-SX instead of 100BASE-SX

Question 35

What is the wavelength measurement of 1000BASE-SX?

Answer 35

850 nm

Question 36

What cabling does the 1000BASE-SX use?

Answer 36

OM2 or better MMF (OM1 works for short distances)

Question 38

What connectors does the 1000BASE-SX use?

Answer 38

Mostly LC but can vary

Question 39

What's the 1000BASE-SX's distance range?

Answer 39

220-500 meters

Question 40

If the first GB fiber optic standard is 1000BASE-SX (short wavelength, hence the "S"), what is the other GB fiber standard?

Answer 40

1000BASE-LX

Question 41

What connectors does the 1000BASE-LX use?

Answer 41

Varies, but commonly LC or SC

Question 42

What is the 1000BASE-LX's cabling and wavelength measurement?

Answer 42

OS1 or OS2 SMF; 1300 nm

Question 43

What is the 1000BASE-LX's distance range?

Answer 43

5 kilometers

Question 44

Having an "L" in a standard such as "...BASE-L_" means SMF is used as cabling.

Answer 44

True; Remember "L" means long wavelength, which is SMF because it shoots long-distance lasers

Question 45

What do "R" and "W" each stand for in the underscore's place in something such as "...BASE-L_"?

Answer 45

R = LAN; W = WAN

Question 46

What are the two 10 Gb fiber optic standards you need to know?

Answer 46

10GBASE-SR & 10GBASE-LR

Question 47

What is a good rule of thumb for remembering what "S" and "L" mean in standard names?

Answer 47

If it is "S", it should not correlate to another "S", so it is MMF. "L" means long, so it is SMF because SMF shoots long-distance lasers

Question 48

What is the wavelength measurement and distance range of 10GBASE-SR?

Answer 48

850 nm; 33-400 meters

Question 49

What is the fiber type and physical layer signaling of 10GBASE-SR? (Hint: it's all in the name)

Answer 49

MMF; LAN

Question 50

What is the fiber type and physical layer signaling of 10GBASE-LR?

Answer 50

SMF; LAN

Question 51

What is the wavelength measurement and distance range of 10GBASE-LR?

Answer 51

1310 nm; 10 kilometers