下面使用DROP USER语句删除用户user1的语句中,正确的是 A: DROP USER user1@localhost; B: DROP USER 'user1'.’ocalhost'; C: DROP USER user1.localhost; D: DROP USER 'user1'@'localhost';

如果要删除user数据库中的user1表，可以使用下列哪个命令______ A: ALERT TABLE user1 B: DROP TABLE user1 C: DELETE TABLE user1 D: TRUNCATE TABLE user1

A user named User1 uses a computer that runs Windows XP Professional. You need to enable User1 to create local user accounts. You must minimize the rights assigned to the User1 account. Which group should you add User1 to?（） A: Administrators B: Power Users C: Users D: Network Configuration Operator

A user named User1 uses a computer that runs Windows XP Professional. You need to enable User1 to create local user accounts. You must minimize the rights assigned to the User1 account.  Which group should you add User1 to?（） A: Administrators B: Power Users C: Users  D: Network Configuration Operators

Your network contains an Active Directory domain.   A user named User1 takes a leave of absence for one year.   You need to restrict access to the User1 user account while User1 is away.     What should you do（） A: From the Default Domain Policy， modify the account lockout settings. B: From the Default Domain Controller Policy， modify the account lockout settings. C: From the properties of the user account， modify the Account options. D: From the properties of the user account， modify the Session settings.

使用GRANT语句创建用户名为user1、密码为123,并授予该用户对chapter08.student表有查询权限。 下面选项中,能实现上述功能的语句是 A: GRANT SELECT ON chapter08.student FOR 'user1'@'localhost' IDENTIFIED BY '123'; B: GRANT USER SELECT ON chapter08.student TO 'user1'@'localhost' IDENTIFIED BY '123'; C: GRANT USER SELECT ON chapter08.student 'user1'@'localhost' IDENTIFIED BY '123'; D: GRANT SELECT ON chapter08.student TO 'user1'@'localhost' IDENTIFIED BY '123';

下面使用DROP USER语句删除用户user1的语句中，正确的是（）

A user named User1 uses a shared computer that runs Windows 7. User1 is a standard user. User1 attempts to connect a USB device to the computer and is prompted to enter administrative credentials. Youneed to ensure that User1 can use the USB device without requiring administrative credentials. What shouldyou do first?（） A: Add User1 to the Power Users group. B: Run Pnputil.exe and specify the i a parameters. C: Run Driverquery.exe and specify the /SI parameter. D: Copy the driver files to the C：\windows\system32 folder.

更改用户user1为User1的命令是()。 A: usermod –name User1 user1 B: usermod –c User1 user1 C: usermod –u    User1 user1 D: usermod –l User1 user1

更改用户user1为User1的命令是()。 A: usermod –name User1 user1 B: usermod –c User1 user1 C: usermod –u    User1 user1 D: usermod –l User1 user1