Correct Answer : Windows Server 2003 R2 SP2 64-bit Itanium Datacenter
Explanation : SQL Server 2008 R2 Enterprise is designed for large, highly scalable enterprise implementations.
Correct Answer : Master
Explanation : The master database records all of the system level information for a SQL Server system.
Correct Answer : Model
Explanation : When a CREATE DATABASE statement is issued, the first part of the database is created by copying in the contents of the model database.
Correct Answer : Msdb
Explanation : The msdb database is used by SQL Server Agent for scheduling alerts and jobs, and recording operators.