单项选择题 Your network contains an Active Directory forest.     You add an additional user principal name （UPN） suffix to the forest. You need to modify the UPN  suffix of all users.     You want to achieve this goal by using the minimum amount of administrative effort.     What should you use（）

单项选择题 Your network contains an Active Directory forest. The functional level of the forest is Windows  Server 2008 R2.     Your company’s corporate security policy states that the password for each user account must be  changed at least every 45 days.     You have a user account named Service1. Service1 is used by a network application named  Application1. Every 45 days， Application1 fails.  After resetting the password for Service1， Application1 runs properly. You need to resolve the  issue that causes Application1 to fail. The solution must adhere to the corporate security policy.     What should you do（）

单项选择题 You have a Windows PowerShell script that contains the following code：   import-csv Accounts.csv | Foreach {New-ADUser -Name $_.Name -Enabled $true  -AccountPassword $_.password}     When you run the script， you receive an error message indicating that the format of the password  is incorrect. The script fails.     You need to run a script that successfully creates the user accounts by using the password  contained in accounts.csv.     Which script should you run（）