Interview Questions.

Q1. What All Schema We Need For Oracle Soa Suite Tool ?

We require following schema.

MDS – This schema is used to store all the artifacts like WSDL, XML, XSD etc.

SOA_INFRA – This schema is used to shop SOA Component Engine residences, deployed composites, payloads, runtime metadata and many others.

ORABAM – This schema is used to store the metadata this is related to BAM and its additives and that is optional schema.

ORASDPM – This schema is used to shop metadata approximately the person messaging systems.

Q2. What Is Em ?

EM stands for Enterprise Manager. It is webpage we deploy, take a look at, screen, diagnose and resolve problem for composites. It is hosted at the Admin Server.

Q3. What Are The Types Of Binding Components ?

Binding components are of  kinds as referred to under.

Service Binding : With the help of this binding we connect composite to supply or consumer machine or we are able to say that is access factor of composite.

Reference Binding: This binding facilitates composite to connect with target or reference structures or we will say it's miles exist point of the composite.

Q4. What All Bpel Templates Are Available In Soa Suite Tool ?

Primarily we've 3 sorts of BPEL template in SOA Suite tool.

Synchronous BPEL Template

Asynchronous BPEL Template

OneWay BPEL Template

Q5. What Is Domain ?

A area is the primary administration unit for WebLogic Server times. I.E. Domains include a unique WebLogic Server instance called the Administration Server, that's the valuable factor from which you configure and control all resources inside the area.

Q6. If We Have Multiple Composites On Soa Server With Same Name Then How Composites Run ?

If we've got multiple composites with equal name then most effective one composite will act as default composite a good way to run best. But we will visit EM console and make different composite default.

Q7. What Are Benefits Of Partition?

Below are the major benefits of partition.

Logically group SOA composites.

Perform bulk lifecycle control tasks on big numbers of composites.

Q8. What Is Bpel ?

BPEL stands for Business Process Execution Language, it is one of the aspect of SOA Suite tool. BPEL is a XML based totally language used to layout business system/flows. We perform service orchestration in BPEL.

Q9. What Are Different Parts Of Bpel ?

Below are distinctive parts of BPEL as mentioned underneath.

Service Interface: A WSDL describing the capability of the BPEL process. The service interface gives the end user a way to have interaction with the BPEL system thing the usage of Service Interface / Service Binding.

Activities: units of labor. The actual factors that make up the BPEL system glide or series of instructions to be finished.

Partner links: also called Reference bindings. A partner hyperlink describes the jobs performed for the interplay between the BPEL system and the carrier it invokes.

Q10. Can We Have More Than One Service Component In One Composite ?

Sure, we are able to have as many as provider additives in a single composite but it isn't always advocated, we should not have all the components in a single composite itself.

Q11. What Can Scenario Where We Have Two Reference Binding In One Composite ?

Composite needs to ship the message to first target by using JMS queue and to other goal by using writing the record, in this situation we've got two exist for composite.

Q12. Benefits Of Sca ?

Easier Development :No need to put in writing prolonged code as we get all components prebuilt.

Easily compose a assembly (composite) with the aid of just linking special those prebuilt components.

Better re-usability

Q13. What Is Soa ?

SOA stands for Service Oriented Architecture. SOA isn't always any device, as a substitute is a concept and there are many tools in the marketplace based upon this concept. In this SOA Concept, we use SOA layer as center or intermediate layer between services in order that these provider can communicate with every other.

Q14. What Can Be Scenario Where We Have Two Service Binding In One Composite ?

When a composite can be initiated either through direct call or by using consuming the identical message from JMS queue, in this state of affairs we've got  access factor for same composite.

Q15. What Is Partition ?

Sections of the SOA Infrastructure in which we install SOA composite programs referred to as partition. When we set up SOA suite tool, default partition get created with name “default” but we will add as many as walls as required.

Q16. What Is Wire ?

Connection among carrier & binding thing and inside service & binding components realize as wire. I.E. This allow us to graphically connect the additives in a SOA composite software.

Q17. Which Application Server Required For Oracle Soa Suite Tool ?

Mostly WebLogic server is used as software server for Oracle SOA Suite tool.

Q18. What Is Oracle Soa Suite Tool ?

SOA Suite device is a middleware device from Oracle that's based upon SOA idea comes beneath Oracle Fusion Middleware stack. We use this device for integration purpose .I.E. This device is used to combine two device/programs and so forth.

Q19. Can We More Than One Service & Reference Binding In One Composite ?

Yes, we are able to multiple provider & reference binding in a single composite, that me we can have multiple entry & exist factor for composite.

Q20. How We Can Deploy Composite To Soa Server ?

There are specific strategies to installation SOA composite to SOA server.

Through EM console

Directly from JDeveloper

Scripting (Ant, WLST and many others.)

Q21. What Is Soa Composite ?

SOA composite is a meeting incorporates of 1 or a couple of pre-build components. In SOA composite we wires unique components together to perform required business functionality.

Q22. What Role Does Zookeeper Plays In Hbase?

HBase comes incorporated with Zoo keeper. When I begin HBase, Zoo keeper example is also began. The reason is that the Zoo keeper enables us in keeping a track of all location servers which might be there for HBase. Zoo keeper keeps music of how many place servers are there, which location servers are maintaining from which statistics node to which facts node. It maintains music of smaller information sets in which Hadoop is missing out. It decreases the overhead on pinnacle of Hadoop which maintains tune of most of your Meta information. Hence HMaster receives the info of place servers by means of virtually contacting Zoo keeper.

Q23. What Is Managed Servers ?

All different WLS times in a site are referred to as Managed Servers. Managed servers host application components and assets.

Q24. How Many Components We Have In Oracle Soa Suite Tool?

We have total 5 components in Oracle SOA Suite device as stated under.

BPEL : Business Process Execution Language

Mediator

Business Rules

Human Task

Spring

Q25. What Is Memstore ?

The MemStore is a write buffer wherein HBase accumulates facts in reminiscence before a permanent write.

Its contents are flushed to disk to shape an HFile whilst the MemStore fills up.It doesn’t write to an existing HFile however rather forms a brand new file on every flush. There is one MemStore consistent with column family.

Q26. How These Service Components Works ?

Each provider issue is hosted in its personal service engine field. E.G. Any good judgment brought in BPEL additives could be dealt with by using BPEL service engine best.

Q27. What Is Binding Component ?

As call advocate, this factor is used to bind composite utility to external global. I.E. We use these components to link composite with supply and goal device.

Q28. What All Components/products Needs To Be Installed Before We Install Oracle Soa Suite Tool ?

Following components needs to be installed earlier than we deploy Oracle SOA Suite.

JDK

Database

All Required Schema (Created the usage of RCU)

WebLogic Server

Q29. What Is Config Plan ?

Config plan is used in the course of composite deployment. This is a xml file where we specify the parameters that we need to replace while doing the deployment to next environment.

Q30. Benefits Of Soa ?

Below are the fundamental blessings that we get from SOA.

Loose Coupling : This me that the provider requester has no know-how of the technical information of the issuer’s implementation, such as the programming language, deployment platform, and so forth. The carrier requester generally invokes operations via manner of messages — a request message and the reaction — as opposed to thru the use of APIs or file codecs.

Cost Cutting

Better reuse: Build new purchaser capability on top of current Business Services.

Well described interfaces: Make changes with out affecting customers

Easier to maintain : Changes/Versions aren't all-or-nothing

Better flexibility

Q31. What All Bulk Operations We Can Perform On Partition ?

We can perform below operations.

Start all composites

Shut down all composites

Undeploy all composites

Retire all composites

Activate all composites

List all composites

Q32. What Is Soa-infra ?

Soa-infra is a J2EE utility that is targeted to both a controlled server or a cluster. All the composites gets deployed under soa-infra utility.

Q33. What Is Service Component ?

All prebuilt components BPEL , Mediator, Business Rules, Human Task and Spring known as provider additives.

Q34. What Is Wal ?

We can't be sure that the records may be chronic at some stage in in Memstore. Assume that a particular datanode is down. Then the statistics that is living on that information node’s memory may be lost.

To triumph over this problem, while the request comes from the grasp it written to WAL as nicely. WAL is not anything however Write Ahead Logs which resides at the HDFS, a permanent storage. Now we are able to make certain that even when if the records node is down the facts will not be lost I.E. We have the replica of all the moves that you are imagined to do within the WAL.

Q35. What Is Cluster ?

Cluster is a group of server times that work together as a single runtime unit from a client attitude. Clustering gives scalability and high availability for packages.

Q36. Which Ide We Use For Oracle Soa Suite Tool ?

We use JDeveloper IDE for Oracle SOA suite device.

Q37. What Are The Two Types Of Table Design Approach In Hbase?

They are − (i) Short and Wide (ii) Tall and Thin

Q38. Can We Have Multiple Composites With Same Name On Soa Server ?

Yes, we can have a couple of composites with equal call on SOA server but this is feasible when we have composites with revisions.

Q39. What Is Administration Server ?

A domain has one WLS instance configured as an admin server. The admin server offers a principal point for coping with a domain.

Q40. Is Oracle Soa Suite Tool State Full ?

Yes SOA Suite device is a state complete tool, that me in this tool we save every kingdom in database i.E. We shop all the incoming messages, trformed messages, outgoing messages to database in conjunction with timestamp.