SAP stands for "Systeme, Anwendungen, Produkte in der Datenverarbeitung" in German for "Systems, Applications and Products in Data Processing". The SAP ERP is a German company that sells tools for client- server business software. In United States of America, it is called SAP America. The modalities of the product provides huge flexibility to the users and clients.
These SAP questions and answers shall help you to prepare for a real life session.