INTERVIEW QUESTIONS SAP SAP R/3 DETAILS

Question: What are presentation, application and database servers in SAP R/3?

Answer: SAP R/3 Mainaly dived into 3 layers.
1.Presentation layer.
2.Application layer.
3.Database layer.
Presentation layer:- It is used to communicate/connecting
with only application server. Here we using the GUI. This
GUI is mainly dived into 3 types.
(i).Windows GUI.
(ii).JAVA GUI.
(iii).Html GUI.

Application server is where the dispatcher distribute the work load to the different work processes(like Dailog wp,B/G wp,spool wp, update wp and enque wp )and makes the job done.

Database Server is where it contains three buffer( D/B buffer,SQL buffer and Redolog buffer )and a Actual data base where the commited data is stored.

SAP R/3 Mainaly dived into 3 layers.
1.Presentation layer.
2.Application layer.
3.Database layer.
Presentation layer:- It is used to communicate/connecting
with only application server. Here we using the GUI. This
GUI is mainly dived into 3 types.
(i).Windows GUI.
(ii).JAVA GUI.
(iii).Html GUI.

Application server is where the dispatcher distribute the work load to the different work processes(like Dailog wp,B/G wp,spool wp, update wp and enque wp )and makes the job done.

Database Server is where it contains three buffer( D/B buffer,SQL buffer and Redolog buffer )and a Actual data base where the commited data is stored. Source: CoolInterview.com

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