修改了/etc/profile文件，如何生效（）。 A: source/etc/profile B: /etc/profile C: 重启机器 D: /opt/profile

分屏查看文件profile的内容,且可上下翻页显示内容的执行命令是()。 A: #less profile B: #profile less C: #more profile D: #profile more

In a profile control of a curved surface, the profile must be dimensioned with :

安装完java环境，要在配置文件（）中配置java的相关环境变量。 A: /etc/profile B: /root/profile C: /home/profile D: /profile

Solaris操作系统下，（）命令可以修改/n2kuser/.profile文件的属性为：所有用户可读、可写、可执行 A: chmod777/n2kuser/.profile B: chmod000/n2kuser/.profile C: chmod111/n2kuser/.profile D: chmod222/n2kuser/.profile

If you delete a profile, all of the settings and accounts associated with the profile are not changed.

Frank works as ______. A: a security guard at a university B: a security guard at university C: a security guard at the university D: security guard at a university

Which kind of security is more complicated A: security used to send credit card data B: security used in Webs C: security used within the company

________<br/>means the level for which appropriate additional<br/>protective security measures shall be maintained for a period of time<br/>as a result of heightened risk of a security incident. A: Security level 1 B: Security level 2 C: Security level 3 D: Security level 4

helping to 3)______________ and save energy. A: prove security B: improve C: improving security D: improve security