CCNP系列認(rèn)證CCNP(642-311)單項(xiàng)選擇題每日一練(2019.01.20)

來(lái)源：考試資料網(wǎng)

1 The ML-series Ethernet card on the ONS 15454 provides up to （）active Q-in-Q instances per card.

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

3 Click the Exhibit button. A customer has several interconnected core rings (see exhibit). They want to create several irtual rings?utilizing their OC-192 backbone (nodes 1,2,3,4). What should you recommend?（）

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4 If the power is 0 dBm, what is the power in mW?（）

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5 How is UPSR and BLSR traffic rerouted during a protection switch when a complete fiber cable cut occurs?（）

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