If you are looking for a quick way to verify the service pack and version applied to your SQL server instance, try the following T-SQL:
SELECT
SERVERPROPERTY('productversion') AS productversion,
SERVERPROPERTY('productlevel') AS productlevel,
SERVERPROPERTY('edition') AS edition
SERVERPROPERTY('productversion') AS productversion,
SERVERPROPERTY('productlevel') AS productlevel,
SERVERPROPERTY('edition') AS edition
Hope this helps!