The frame structure of ODU4 is four times that of ODU1
Answer : B
For 100G (112Gbit/s) signals, the actual data baud rate is only 28G amplitude.
Answer : A
The working mode of the port determines the flow control mode of the port.
When the operating mode is 100Mbit/s full duplex, one of the following flow control modes can be used
Answer : B
The refractive index n1 of the fiber core must be the Q of the cladding refractive Mo n2, which is a necessary condition for transmitting the optical signal in the optical fiber.
Answer : A
Which of the following bytes can be used for wired phones between two REG devices?
Answer : A
The Raman amplifer uses which of the following effects?
Answer : C
Which of the following is the meaning of SFD in the Ethernet frame structure?
Answer : C