OSB Basic Interview Question

1. What is Proxy Service in OSB ?
Ans:- It is one of the component of OSB and used to connect to source system.


2. What is Business Service in OSB ?
Ans:- It is one of the component of OSB and used to connect to target system, you can define business service using Wsdls(Web Service Description language) just as you would define a proxy service. However, the configuration of business service is differs from that of proxy services in that business service doesn't have a pipeline. therefore, a business service not implemented by the OSB pipelines.
 
3. What is Route node ?
Ans:- Route node is like container, we can place some routing actions. also called as request boundary   so that we cannot place any more actions after the route node.

it is used to route the message from proxy service to business service.




4. What is Routing Action ?
Ans:- By using routing action we can invoke a business service, input for a routing action is request body, Output is response body.


5. What is Service callout ?
Ans:- Service callout is only available in Pipeline pair, through which we can invoke a business service. we have to create request, response variables and have to initialize the request variable before invokation of the business service.

By using service callout we can call another synchronous service from message flow.


6. What is Pipeline Pair ?                                                                                                                               Ans:- A pipeline pair node consists of  a request pipeline as well as response pipeline to define a message flow.

7. What is Log ?
Ans:- Log action we are using to log a information into a log file.

Path of log file:- middlewarehome/userprojects/domainname/servers/Adminserver/logs.                                                                                                                                                                                     
8. What is Report ?
Ans:- which sends some report to the sbconsole, admin can verify and take the necessary action.

9. What is Alert ?
Ans:- we can send some notifications, osb supports Email alerts and JMS alerts. to use this we need to create some alert destinations.

10. What is Restful services ?
Ans:- Restfull services are HTTP methods, which supports
(a) Insert (b) delete (c) get (d) Put (e)update                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

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