CCNP系列認證CCNP(642-845)單項選擇題每日一練(2019.01.20)

來源：考試資料網(wǎng)

1 Which statements is true about Foreign Exchange Station （FXS） ports on a router？（）

2 Which statement is true about the configuration of AutoQoS on a Frame Relay interface？（）

3 Which QoS preclassification option will require the use of the qos pre-classify command for the VPN traffic？（）

4 Which two statements are true about the protocols that are used for transmitting voice traffic？（）

5 Identify the link efficiency mechanism？（）

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