What Symbol Cannot be Used in an Account Name in Windows Server 2016??

Which Characters are not Allowed in User Account Names?

User names must be no more than 20 characters in length. User names can contain all other special characters , including spaces, periods, dashes, and underscores. But its generally not a good idea to use spaces in account names.

What is not an Attribute that Must be Defined for each Active Directory Account?

What is NOT an attribute that must be defined for each Active Directory account? ... A ReadOnly Domain Controller RODC cannot be used to update information in Active Directory, and it does not replicate to regular DCs.

What Tab under a User's Account Properties Allows you to Define the Hours at which the User is Able to Log on to the Domain?

Specify logon hours
You can restrict the hours during which the user is allowed to log on to the system. Click the Logon Hours button on the Account tab of the User Properties dialog box to open the Logon Hours for [User] dialog box.

What Statement Regarding Active Directory Objects that can be Members of a Domain Local Group is not Accurate?

What statement regarding Active Directory objects that can be members of a domain local group is NOT accurate? Universal groups in any domain in a tree or forest can be a member of the domain local group, without requiring a trust relationship. An Organizational Unit cannot be nested within another Organizational Unit.