CCIE系列認(rèn)證單項(xiàng)選擇題每日一練(2019.07.30)

來源：考試資料網(wǎng)

1 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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2 n a virtual port channel （vPC） configuration， VRRP exhibits which characteristic？（）

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3 Where are Cisco UCS vNICs created？（）

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4 Why does RSTP have a better convergence time than 802.1D？（）

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5 You are about to design a very fast convergence time on a service provider network. Which feature wouldyou utilize to declare a link failure within less than two seconds of the fault on a link？（）

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