Huawei
H31-311_V2.5 · Question #228
The LAN physical layer is often used for the interconnection of routers and switches. Although it is called a LAN, if a 10GBase-LR or -ER optical module is used, the transmission distance can reach…
The correct answer is A. True. See the full explanation below for the reasoning.
Optical Fiber Communication Fundamentals
Question
The LAN physical layer is often used for the interconnection of routers and switches. Although it is called a LAN, if a 10GBase-LR or -ER optical module is used, the transmission distance can reach 80 kilometers.
Options
- ATrue
- BFalse
How the community answered
(39 responses)- A72% (28)
- B28% (11)
Topics
#10GBase-LR#10GBase-ER#LAN physical layer#optical module transmission distance
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