Which two statements about subnet masks are true?()A.If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.B.If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.C.If a

题目
Which two statements about subnet masks are true?()

A.If a bit is turned on (1), the corresponding bit in the IP address is used for the host portion.

B.If a bit is turned off (0), the corresponding bit in the IP address is used for the host portion.

C.If a bit is turned on (1), the corresponding bit in the IP address is used for the network prefix.

D.If a bit is turned off (0), the corresponding bit in the IP address is used for the network prefix.


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参考答案和解析
参考答案:B, C
更多“Which two statements about subnet masks are true?() ”相关问题
  • 第1题:

    下列复选框构造方法,错误的是 ( )

    A.setLayout(new GridLayout(3,1));

    B.add(new Checkbox("one",null,true));

    C.add(new Checkbox("two"));

    D.add(new Checkbox("one",true));


    正确答案:D
    解析:该题考查复选框的构造方法。构造方法的一般格式为:public Checkbox (String label,CheckboxGrou Pgroup,boolean state)。选项A、B、C都是正确的,而选项D是错误的,它的第二个参数应该是CheckboxGrou Pgroup,所以选项D是错误的。

  • 第2题:

    A workstation is added to a newly created subnet using 192.168.100.0/24. A DHCP server is available on subnet 192.168.101.0/24. The user is unable to lease an address from the DHCP server. Which of the following would BEST resolve the problem?()

    A. Assign the workstation a static IP address.

    B. Add a second DHCP server to the 192.168.101.0/24 subnet.

    C. Add a DHCP relay to the 192.168.100.0/24 subnet.

    D. Add a DHCP server to the 192.168.100.0/24 subnet


    参考答案:C

  • 第3题:

    12. About_______ of the workers in the factory were born in the __________.

    A. two- thirds;1970

    B. two- thirds ; 1970s

    C. two-third ; 1970

    D. two-third ; 1970s


    正确答案:B
    12.B【解析】句意:工厂里大约2/3的工人出生在20世纪70年代。分数的表达为分子用基数词,分母用序数词,如果分子大于1,则分母要用复数,排除C、D,年代的表达要在年份后加s.故选B。

  • 第4题:

    下列复选框构造方法,错误的是()。

    A.setLayout(newGridLayout(3,1));

    B.add(newCheckbox("one",null,true));

    C.add(newCheckbox("tWO");

    D.add(newCheckbox("one",true);


    正确答案:D

  • 第5题:

    About ________ of the workers in the factory were born in the ________.

    A.two-thirds, 1970 B.two-thirds, 1970s C.two-third,1970 D.two-third, 1970s


    正确答案:B

  • 第6题:

    Norman Blarney is an artist of deep convictions.

    A: claims
    B:suggestions
    C: beliefs
    D:statements

    答案:C
    解析:
    句意:诺曼.布莱梅是一个有坚定信念的艺术家,句中画线部分conviction意为 “信念”。claim意为“要求,声称”。suggestion意为“建议”。belief意为“相信,信赖”。 statement意为“声明,陈述”。画线部分和C项意义接近。故选C项。