You administer a single server that contains a Microsoft SQL Server 2016 default instance. You plan to install a new application that requires the deployment of a database on the server. The application login requires sysadmin permissions. You need to ensure that the application login is unable to access other production databases. What should you do?
正解:B
Explanation/Reference: SQL Server supports multiple instances of SQL Server on a single server or processor, but only one instance can be the default instance. All others must be named instances. A computer can run multiple instances of SQL Server concurrently, and each instance runs independently of other instances. References: https://msdn.microsoft.com/en-us/library/ms143531(v=SQL.105).aspx