CCIE系列認(rèn)證CCIE 415Q單項(xiàng)選擇題每日一練(2019.01.11)

來源：考試資料網(wǎng)

1 IEEE 802.1w is a Rapid Spanning Tree Protocol （RSTP） that can be seen as an evolution of the 802.1 standard. What are the port roles described by 802.1w？（）

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2 Which statement is correct in reference to IPv6 multicast？（）

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3 Which statement is true of a source that wants to transmit multicast traffic to group 239.1.1.1？（）

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4 You are configuring an 802.1Q trunk between a Layer 2 switch and a firewall. You read in the documentation that the best way to set up a trunk is to set the port as dynamic desirable. The trunk is not coming up. Which one of these options would be a valid explanation？（）

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5 The OSPF RFC 3623 Graceful Restart feature allows you to configure IETF NSF in ultivendor networks. When using OSPF Graceful Restart， which mechanism is used tocontinue forwarding packets during a switchover？（）

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