CCIE系列認證CCIE 415Q多項選擇題每日一練(2019.02.18)

來源：考試資料網(wǎng)

1 Which three protocols should be explicitly managed by using a CoPP policy on an Internet border router？（）

2 Which two statements best describe CBWFQ？（）

3 Which two OSPF LSA types are new in OSPF version 3？（）

4 Area Border Router （ABR） is a router located on the border of one or more OSPF areas that connect those areas to the backbone network. An ABR will inject a default route into which two types of areas？（）

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5 You are the network administrator of a medium-sized company， and users are complaining that they cannot send emails to some organizations. During your troubleshooting， you notice that your DNS MX record is blacklisted by several public blacklist filters. After clearing these listings for your IP address， and assuming that your email server has the right virus protection in place， what are two possible solutions to prevent this from happening in the future？（）

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