Single mode fiber line 2000m long. Carrier frequency is 900MHz. Is this a long line or short line?

Im doing the final homework for my telecom class. One of the questions is asking if, given the provided information, this would be electrically consid

I'm doing the final homework for my telecom class. One of the questions is asking if, given the provided information, this would be electrically considered a short line or a long line. I know that normally that's determined by the length of the cable having to be less than 1/4 of the wavelength, but I'm not sure if that applies to fiber optics as well or if he put that question in there to trick us. Any help would be much appreciated, thank you.

or:I'm doing the final homework for my telecom class. One of the questions is asking if, given the provided information, this would be electrically considered a short line or a long line. I know that normally that's determined by the length of the cable having to be less than 1/4 of the wavelength, but I'm not sure if that applies to fiber optics as well or if he put that question in there to trick us. Any help would be much appreciated, thank you.

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