Which three circumstances would prevent traceroute from displaying the WAN IP addresses? ()(Choose three)A. The WAN link is down.B. IPSec is enabled on the WX.C. Traceroute is enabled for compression.D. The network is configured using static routes.E. The

题目
Which three circumstances would prevent traceroute from displaying the WAN IP addresses? ()(Choose three)

A. The WAN link is down.

B. IPSec is enabled on the WX.

C. Traceroute is enabled for compression.

D. The network is configured using static routes.

E. The local and remote cables are accidentally swapped.


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  • 第1题:

    以下对枚举类型名的定义中正确的是______。

    A.enum a={one, two,three};

    B.enum a{one=9,two=1,three};

    C.enum a={"one","two","three"};

    D.enum a{"one", "two","three"};


    正确答案:B
    解析:声明枚举类型用enum开头。例如:enumweekday(sun,mon,tue,wed,thu,fri,sat);说明:1、在C编译中,对枚举元素按常量处理,同时可以改变他们的值。2、枚举值可以用来做判断比较。3、一个整数不能直接赋给一个枚举变量。

  • 第2题:

    Despite the wonderful acting and well-developed plot the _________ movie could not hold our attention.

    A) three-hours B) three-hour

    C) three-hours’ D) three-hour’s

     

     


    选B

     用破折号连接的作形容词不用复数.

  • 第3题:

    以下对枚举类型名的定义中正确的是

    A.enum a {one=9,two=-1,three};

    B.enum a={“one”, “two”, “three”};

    C.enum a {“one”, “two”, “three”};

    D.enum a={one, two, three};


    enum a{a1,a2,a3};

  • 第4题:

    以下对枚举类型名的定义中正确的是 ( )

    A.enuma={one,two,three};

    B.enuma{one=9,two=-1,three};

    C.enum a={"one" "two","three"};

    D.enum a{"one","two","three"};


    正确答案:B

  • 第5题:

    以下对枚举类型名的定义中正确的是______。

    A.enum a={one,two,three};

    B.enum a {one=9,two=1,three};

    C.enum a={"one","two","three"};

    D.enum a{"one","two","three"};


    正确答案:B
    解析:声明枚举类型用enum开头。例如:enumweekday(sun,mon,tue,wed,thu,fri,sat);说明:1、在C编译中,对枚举元素按常量处理,同时可以改变他们的值。2、枚举值可以用来做判断比较。3、一个整数不能直接赋给一个枚举变量。

  • 第6题:

    5、以下对枚举类型名的定义中正确的是()。

    A.enum a={one,two,three};

    B.enum a{one=9,two,three};

    C.enum a={"one","two","three"};

    D.enum a{"one","two","three"};


    enum a {one=9,two=-1,three};