A BGP router should use three export policies named add-communities, no-rfc1918-routes, andrejected-unwanted. Which export statement places the add-communities policy immediately before the default BGP policy?()A. export [add-communities no-rfc1918-routes

题目

A BGP router should use three export policies named add-communities, no-rfc1918-routes, andrejected-unwanted. Which export statement places the add-communities policy immediately before the default BGP policy?()

A. export [add-communities no-rfc1918-routes rejected-unwanted];

B. export [no-rfc1918-routes add-communities rejected-unwanted];

C. export [add-communities rejected-unwanted no-rfc1918-routes];

D. export [no-rfc1918-routes rejected-unwanted add-communities];


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  • 第1题:

    ABGProuterhasthefollowingconfiguration:

    protocols{

    bgp{

    export[policy-1policy-2policy-3];

    }}

    policy-options{

    policy-statementpolicy-2{

    termget-statics{

    fromprotocolstatic;

    thenaccept;

    }

    termreject-all{

    thenreject;

    }

    }

    policy-statementpolicy-1{

    termget-aggregate{

    fromprotocolaggregate;

    thenaccept;

    }

    termreject-all{

    thenreject;

    }

    }

    policy-statementpolicy-3{

    termget-ospf{

    fromprotocolospf;

    thenaccept;

    }

    termreject-all{

    thenreject;

    }

    }

    }

    Whichpolicytermisevaluatedfirstwhenexportingroutes?()


    参考答案:D

  • 第2题:

    在所有BGP路由器使能Router-refresh能力的情况下,如果BGP的入门路由策略发生了变化,本地BGP路由器会想对等体发布Router-refresh消息,收到此消息的对等体会将其路由信息重新发给本地BGP路由器

    A.错误

    B.正确


    参考答案:B

  • 第3题:

    ______ it rain tomorrow moring, the loading ______.

    A.Should / will be postponed

    B.If / shall be postponed

    C.Should / would be postponed

    D.If / has to be postponed


    正确答案:C
    一旦明天早上下雨,装货将被延迟。

  • 第4题:

    关于BGP公认团体属性描述错误的是()

    A.Internet团体属性:缺省情况下,所有路由器都属于internet团体

    B.No-Export团体属性:具有此属性的路由在收到后,不能被发布到本地AS之外,如果使用了联盟,则不能被发布到联盟之外,但可以发布给联盟中的其他子AS

    C.No-Advertise属性:具有此属性的路由在收到后,不能被通告给任何其他的BGP对等体

    D.No-Export-Subconfed属性:具有此属性的路由在收到后,不能被发布到本地AS之外,也不能发布到联盟中的其他子AS


    参考答案:C

  • 第5题:

    如果路由器system视图下和BGP视图下都配置了router-id,由于BGP的视图优先级更高,则BGP使用BGP视图下的router-id

    A.错误

    B.正确


    参考答案:B