认识windows中用户名称的限定 问题： which of the following is a valid logon name? a.“matt_brown” b.matt_brown c.matt-brown d.brown,matt 0select the 2 best answers 选择两个可用的登录名。 解答： 上述四个哪两个才是合法(或者说是合理)的用户名呢？只需要看它们是否包含有不合法的字符即可判断。 登录名不可以包含：" / \ [ ] . : | ＝ ， * ? < > 所以， 正确答案：bc 参考资料：mcse trainking kit microsoft windows 2000 server exam 70-215 ,2nd ed--chapter 7 administering microsoft windows 2000 server --lesson 2 : administering user accounts 原文如下： naming conventions the naming convention establishes how users are identified in the domain. a consistent naming convention will help you and your users remember user logon names and locate them in lists.the following table summarizes several points to consider in determining a naming convention for your organization: consideration explanation unique user logon names user logon names for domain user accounts must be unique to the directory. domain user account names must be unique within the ou where you create the domain user account. local user account names must be unique on the computer where you create the local user account. 20 characters maximum user logon names can contain up to 20 uppercase or lowercase characters. the field accepts more than 20 characters, but windows 2000 recognizes only the first 20. invalid characters the following characters are invalid: " / \ [ ] : . | = , * ? < > user logon names are not case sensitive you can use a combination of special and alphanumeric characters to help uniquely identify user accounts. user logon names are not case sensitive, but windows 2000 preserves the case. employees with duplicate names if two users are named john doe, you can use the first name and the last initial and then add letters from the last name to differentiate the duplicate names. in this example, one user account logon name could be johnd and the other johndo. another possibility would be to number each user logon name, for example, johnd1 and johnd2. type of employee in some organizations, it is useful to identify temporary employees by their user account. for example, to identify temporary employees, you can use a t and a dash in front of the user’s logon name: t-johnd. or you might use a parenthetical phrase, such as john doe (temp). service account naming conventions many background services require user accounts in order to operate. consider appending the name of the user account with an abbreviated generic name such as svc for service or a service type name such as exc for a background account used by microsoft exchange services.