SAP R3 Interview Questions and Answers
Question - 21 : - Name Various Work Processes Of R/3 System?
Answer - 21 : -
- Dialog or Online (processes only one request at a time).
- Background (Started at a specific time)
- Update (primary or secondary)
- Enque (Lock mechanism).
- Spool (generated online or during back ground processing for printing).
Question - 22 : - Explain About The Two Services That Are Used To Deal With Communication?
Answer - 22 : -
Message Service: Used by the application servers to exchange short internal messages, all system communications.
Gateway Service: Enables communication between R/3 and external applications using CPI-C protocol.
Question - 23 : - Which Work Process Triggers Database Changes?
Answer - 23 : -
Update work process.
Question - 24 : - Define Service (within R/3)?
Answer - 24 : -
A service is a process or group of processes that perform a specific system function and often provide an application-programming interface for other processes to call.
Question - 25 : - What Are The Roll And Page Areas?
Answer - 25 : -
Roll and page areas are SAP R/3 buffers used to store user contexts (process requests). The SAP dispatcher assigns process requests to work processes as they are queued in the roll and page areas. Paging area holds data from the application programs. Roll area holds data from previous dialog steps and data that characterize the user.
Question - 26 : - What Are The Different Layers In R/3 System?
Answer - 26 : -
- Presentation Layer.
- Application Layer.
- Database Layer.
Question - 27 : - What Are The Phases Of Background Processing?
Answer - 27 : -
- Job Scheduling.
- Job Processing.
- Job Overview.
Question - 28 : - What Components Of The R/e System Initiate The Start Of Background Jobs At The Specified Time?
Answer - 28 : -
The batch scheduler initiates the start of background job. The dispatcher then sends this request to an available background work process for processing.
Question - 29 : - Explain How Sap Gui Handles Output Screen For The User?
Answer - 29 : -
The SAP front-end s/w can either run on the same computer or on different computers provided for that purpose. User terminal input is accepted by the SAP terminal program SAP GUI, converted to SAP proprietary format and sent to the SAP dispatcher. The dispatcher coordinates the information exchange between the SAP GUIs and the work processes. The dispatcher first places the processing request
in request queues, which it then processes. The dispatcher dispatches the requests one after another, to the available work process. The actual processing takes place in the work process. When processing is complete, the result of a work process is returned via the dispatcher to the SAP GUI. The SAP GUI interprets the received data and generates the output screen for the user.
Question - 30 : - Explain What Is A Transaction In Sap Terminology?
Answer - 30 : -
In SAP terminology, a transaction is series of logically connected dialog steps.