Modern Ethernet Flashcards
With 100BaseT, what is the maximum distance between the hub (or switch) and the node?
1000 meters
400 meters
100 meters
100 meters
The maximum distance is 100 meters
What type of cable and connector does 100BaseFX use?
Multimode fiber with ST or SC connectors
STP Cat 6 with RJ-45 connectors
Single-mode fiber with MT-RJ connectors
Multimode fiber with ST or SC connectors
100BaseFX uses multimode fiber with either ST or SC connectors
How many pairs of wires do 10BaseT and 100BaseT use?
1
3
2
2
10BaseT and 100BaseT use two wire pairs
What standard does IEEE 802.3ab describe?
1000BaseLX
1000BaseT
100BaseT
1000BaseT
IEEE 802.3ab is the 1000BaseT standard (also known as Gigabit Ethernet)
What is the big physical difference between 1000BaseSX and 100BaseFX?
1000BaseSX uses the SC connector exclusively.
1000BaseSX is single-mode, whereas 100BaseFX is multimode.
1000BaseSX uses the ST connector exclusively.
1000BaseSX uses the SC connector exclusively.
While 1000BaseSX looks similar to 100BaseFX, the former does not allow the use of the ST connector
What is the maximum distance for 1000BaseLX without repeaters?
2500 meters
20,000 feet
5000 meters
5000 meters
1000BaseLX can go for 5000 meters (5 kilometers)
What is a big advantage to using fiber-optic cable?
Fiber is common glass; therefore, it’s less expensive.
Fiber is not affected by EMI.
Making custom cable lengths is easier with fiber.
Fiber is not affected by EMI.
Because fiber uses glass and light, it is not affected by EMI
How many wire pairs does 1000BaseT use?
2
3
4
4
1000BaseT uses all four pairs of wires
What is the standard connector for the 10 GbE fiber standard?
SC
MT-RJ
There is no standard.
There is no standard.
There is no standard connector; the 10 GbE committee has left this up to the manufacturers
What is the maximum cable length of 10GBaseT on Cat 6?
55 meters
100 meters
20 meters
55 meters
With Cat 6 cable, 10GBaseT is limited to 55 meters
