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What is the functionality of L2TP in a BRAS environment?()A.It tunnels DHCP requests to the LNS.B.It provides access for analog modem users.C.It provides RFC 2547 VPN services to the user.D.It tunnels a PPP session across an IP backbone.

题目
What is the functionality of L2TP in a BRAS environment?()

A.It tunnels DHCP requests to the LNS.

B.It provides access for analog modem users.

C.It provides RFC 2547 VPN services to the user.

D.It tunnels a PPP session across an IP backbone.


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  • 第1题:

    关于一次认证l2tp和二次认证l2tp的描述,正确的是:()。

    A.一次认证l2tp只在LAC认证

    B.一次认证l2tp只在LNS认证

    C.二次认证l2tp在LAC和LNS都进行认证

    D.二次认证l2tp可以不在LAC端认证


    参考答案:B, C

  • 第2题:

    下面能正确表示L2TP数据包封装格式的?

    A.IP |UDP |L2TP | PPP

    B.IP |TCP |L2TP | PPP

    C.IP |L2TP |TCP | PPP

    D.IP |L2TP |UDP | PPP


    IP |UDP |L2TP | PPP;

  • 第3题:

    下列代码中,用于获取SD卡路径的是_______。

    A.Environment.getSD();

    B.Environment.getExternalStorageState();

    C.Environment.getSDDirectory();

    D.Environment.getExternalStorageDirectory();


    Environment.getExternalStorageDirectory()

  • 第4题:

    下面能正确表示L2TP数据包封装格式的?

    A.IP |TCP |L2TP | PPP;

    B.IP |UDP |L2TP | PPP;

    C.IP |L2TP |TCP | PPP;

    D.IP |L2TP |UDP | PPP;


    IP |UDP |L2TP | PPP;

  • 第5题:

    【单选题】下列代码中,用于获取SD卡路径的是()

    A.Environment.getSD();

    B.Environment.getExternalStorageState();

    C.Environment.getSD Directory();

    D.Environment.getExternalStorageDirectory();


    Environment.getExternalStorageDirectory()

  • 第6题:

    1、下面能正确表示L2TP数据包封装格式的?

    A.IP |TCP |L2TP | PPP;

    B.IP |UDP |L2TP | PPP;

    C.IP |L2TP |TCP | PPP;

    D.IP |L2TP |UDP | PPP;


    IP |UDP |L2TP | PPP;