Name the different user types available in SAP

What is a client in the three-tier client server architecture?

Name a few standard SAP roles that assign the capability of managing the user data?

What is the minimum password length in a standard SAP system?

What is BDC user used for?

How do we start an instance of a SAP server?

Where is a lock table stored in SAP?

What is BC in reference to SAP BW?

Explain briefly the concept of composite roles in reference to the SAP security?

What is the maximum password length in the current version of SAP?

Explain the Business Blueprint phase of SAP implementations?