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Technical Interview Questions and Answers :: WebMethod

    131 / 166

    What is the method used to invoke the input output variables in java service?
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    132 / 166

    Some Core java basics questions?
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    133 / 166

    difference bet loop and repeat?
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    134 / 166

    What is the use of default and null in sequence flow step.?
    Answer:

    Default is when no other conditions are met. Generally used and at the last of the internal sequences.


    Null is, when no value is there. Eg: the variable to compare doesn't exist. Someone can suggest more.

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    135 / 166

    When broker is down, where will the document sent be stored?
    Answer:

    If it is guaranteed document then it will store in outbound document store and if volatile document then it get discarded.

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    136 / 166

    What are public & private queues?
    Answer:

    Public Queue - is a queue that you define to schedule the delivery of documents that are aimed at multiple different receiving partners. When you define a public queue, the name of the public queue is added to the list of queues you can select when specifying a scheduled delivery method with the Deliver Document By processing action.


    Private queues -
    are queues that contains only delivery tasks that correspond to documents aimed for a specific receiving partner. You define private queues in the profile of the receiving partner.


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    137 / 166

    What is difference between local, xa and no transactions?
    Answer:

    Local transaction - means in a single transaction we can do multiple operations on a single database. To be clearer all these multiple operations use the same Adapter connection explicit commit required.


    NO Transaction - Auto commit all transactions.


    XA transaction - means in a single transaction we can do multiple operations on different databases. To be clearer all these multiple operations use different Adapter connection. Generally used for distributed database.
    Use No transaction for select and local transaction for any DML (insert, delete, update) operations to handle the transaction boundary (via start, commit and rollback).

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    138 / 166

    How to publish a document to the broker?
    Answer:

    Step i: A publishing service on the Integration Server sends a document to the dispatcher (or an adapter notification publishes a document when an event occurs on the resource the adapter monitors). Before the Integration Server sends the document to the dispatcher, it validates the document against its publishable document type. If the document is not valid, the service returns an exception specifying the validation error.


    Step ii: The dispatcher obtains a connection from the connection pool. The connection pool is a reserved set of connections that the Integration Server uses to publish documents to the Broker. To publish a document to the Broker, the Integration Server uses a connection for the default client.


    Step iii: The dispatcher sends the document to the Broker.


    Step iV: The Broker examines the storage type for the document to determine how to store the document.
    If the document is volatile, the Broker stores the document in memory.
    If the document is guaranteed, the Broker stores the document in memory and on disk.


    Step v: The Broker routes the document to subscribers by doing one of the following:

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    139 / 166

    What is canonical document?
    Answer:

    Canonical document is standard document that would be used by all the flow services in an Interface. It contains all the variables required in interfaces. The purpose of using canonical document is to remove creation of multiple documents in an interface.

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    140 / 166

    What is Keystore and Truststore?
    Answer:

    KEYSTORE: Integration Server stores its private keys and SSL certificates in keystore files.
    TRUSTSTORE: Integration Server uses a truststore to store its trusted root certificates, which are the public keys for the signing CAs.It simply functions as a database containing all the public keys for CAs within a specified trusted directory


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