Which two statements are true about the rescue configuration file?()A. It must include a root password.B. It is rollback file number 50, and you can recover it by issuing rollback 50.C. It is created by issuing request system configuration rescue save.D.

题目
Which two statements are true about the rescue configuration file?()

A. It must include a root password.

B. It is rollback file number 50, and you can recover it by issuing rollback 50.

C. It is created by issuing request system configuration rescue save.

D. It is updated automatically when you commit.


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  • 第1题:

    To enable the Database Smart Flash Cache, you configure the following parameters:DB_FLASH_CACHE_FILE = ‘/dev/flash_device_1’ , ‘/dev/flash_device_2’DB_FLASH_CACHE_SIZE=64GWhat is the result when you start up the database instance?()

    A. It results in an error because these parameter settings are invalid.

    B. One 64G flash cache file will be used.

    C. Two 64G flash cache files will be used.

    D. Two 32G flash cache files will be used.


    参考答案:B

  • 第2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(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:

    International distress signal in VHF calling for help is________.

    A.Help,Help,Help

    B.Mayday,Mayday,Mayday

    C.Save,Save,Save

    D.Rescue,Rescue,Rescue


    正确答案:B