Which of the following is NOT stored in the master database?

master database is the heart of SQL server. If master database corruption occurs then SQL Server service will not start up until unless restore/rebuild master database. It will store system-level information such as linked servers, logon accounts and endpoints.

The Resource database is a read-only database that contains all the system objects that are included with SQL Server. SQL Server system objects, such as sys.objects, are physically persisted in the Resource database, but they logically appear in the sys schema of every database. The Resource database does not contain user data or user metadata.