CCNP系列認(rèn)證CCNP(642-311)單項(xiàng)選擇題每日一練(2019.01.23)

來(lái)源：考試資料網(wǎng)

1 How is a Thin Film filter fabricated?（）

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2 A customer wants to create a 1:1 protection group with a DS3N-12 card. Which card slots would allow for a 1:1 protection?（）

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3 What is the phenomenon called where different wavelengths of light travel at different speeds?（）

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4 What is the correct relative switching priority in a BLSR ring (higher to lower)?（）

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5 If the dispersion of a given fiber is 17ps/nm*km at 1550 nm and zero at 1310 nm, then what is the accumulated dispersion of an ITU wavelength after it travels 200 km?（）

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