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Oracle SOA Suite 11g Certified Implementation Specialist

Question No: 41

Identify two fundamental terms in Service Component Architecture (SCA) that are represented visually in the SOA Composite Editor.

  1. Application

  2. Entry point

  3. Component

  4. Wire

  5. External call

Answer: C,D

Explanation: C: SOA Composite Editor:

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D: You wire (connect) the web service and BPEL process service component. Example Wire Connection:

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Note:

* SOA composite applications consist of the following parts:

Service binding components Composites

Service components Reference binding components Wires

Question No: 42

Which capability or benefit is not applicable to Oracle Service Bus?

  1. Service mediation

  2. Service abstraction

  3. Translation and transformation

  4. Service creation

  5. Stateful processing

Answer: E

Explanation: Service Bus only can do stateless processing, and one of the most important benefits of Service Bus is the service abstraction

Question No: 43

View the Exhibit.

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You have modeled a SOA composite with a single BPEL process component. Both of the invoke activities in the BPEL process use the same XA connection factory: eis/DB/SOADemo. The InsertData partnerlink inserts a new record in the DEPT table in the database. The storeproc_validate partner link calls a stored procedure that validates this newly inserted record.

Which statement is true about the composite?

  1. Invoke1 is capable of detecting omitted XML elements in the input payload and throwing a bindingFault to the caller

  2. If invoke1 encounters a primary key constraint violation on insert, the invocation retires a total of 4 times with a starting interval of 1 and a back-off factor of 2.

  3. Invoke1 and invoke2 use the same underlying JDBC connection to the database.

  4. If invoke2 interaction fils, the insert from Invoke1 is also rolled back.

Answer: A

Explanation: Detect omissions (it is selected here according to the screenshot) allows the MERGE and INSERT operations to ignore empty or missing XML elements in the input payload. For a MERGE operation, this will prevent valid but unspecified values from being overwritten with NULL. For INSERT operations, they will be omitted from the INSERT statement, allowing default values to take effect.

Incorrect:

Not B: Auto-tries are related to connection problems, not to primary key constraints.

* In the Auto-Retries section, specify the value for auto-retry incase of time out. In case of a connection related fault, the Invoke activity can be automatically retried a limited number of times.

Question No: 44

You are creating a web service interface to a legacy system that can handle only five concurrent calls.

What feature of Oracle Service Bus enables you to define this restriction?

  1. Endpoint management

  2. Throttling

  3. Caching

  4. Choking

Answer: B

Explanation: Limiting the Concurrent Number of Requests

Limiting the concurrent requests for a Business Service cannot be set at design time so you have to use the built-in Oracle Service Bus Administration Console to do it (/sbconsole). Follow these steps to enable it:

->In Change Center, click Create to start a new Session

->Select Project Explorer, and navigate to the Business Service you want to limit

->Select the Operational Settings tab of the View a Business Service page

->In this tab, under Throttling, select the Enable check box. By enabling throttling you

->Click Update

->Click Active in Change Center to active the new settings

Note:

  • Virtualized Endpoint Management: Ability to specify multiple endpoints

    for a business service allowing service pooling, load-balancing and failover. Support is also provided for throttling service invocations to protect them from overload.

    Question No: 45

    Identify the statement that describes an ESB.

    1. An ESB provides a mediation layer between services and consumers.

    2. An ESB facilitates a point-to-point approach to application integration.

    3. An ESB is an execution engine providing Java EE capabilities.

    4. An ESB makes service provider addresses visible to service consumers.

    Answer: A

    Explanation: * An enterprise service bus (ESB) is a software architecture model used for designing and implementing the interaction and communication between mutually interacting software applications in service-oriented architecture (SOA). As a software architecture model for distributed computing it is a specialty variant of the more general client server software architecture model and promotes agility and flexibility with regards to communication and interaction between applications. Its primary use is in enterprise application integration (EAI) of heterogeneous and complex landscapes.

  • An enterprise service bus (ESB) is a software architecture for middleware that provides fundamental services for more complex architectures. For example, an ESB incorporates the features required to implement a service-oriented architecture (SOA). In a general sense, an ESB can be thought of as a mechanism that manages access to applications and services (especially legacy versions) to present a single, simple, and consistent interface to end-users via Web- or forms-based client-side front ends.

Question No: 46

Which statement is true about an if-then rule evaluation?

  1. It can be evaluated more than once.

  2. It is evaluated once and only once.

  3. It must evaluate only native variable types.

  4. It cannot change the assessment for another if-then rule.

Answer: A

Explanation: http://www.oracle.com/partners/en/knowledge- zone/applications/soasuite11g-1877659.pdf

Question No: 47

Which two approaches are valid when using dynamic partner links in a BPEL process?

  1. A WSDL file, which contains multiple services that use the same portType, is available at design time, but the decision to determine which service is used can only be made at runtime.

  2. When the BPEL process is designed, the endpoint URL of the WSDL file is known but the services and port types are not known.

  3. When the BPEL process is designed, the services and port types of the WSDL file are known but the endpoint URI is not known.

  4. A WSDL file, which contains multiple services that use different portTypes, is available at design time, but the decision to determine which server us used can only be made at runtime.

Answer: A,C

Explanation: A (not D): How To Create a Dynamic Partner Link at Design Time for Use at Runtime

To create a dynamic partner link at design time for use at runtime:

etc

->Create a WSDL file that contains multiple services that use the same portType.

C (not B): The BPEL specification mandates that only the partner endpoint reference (EPR) can be changed dynamically. In BPEL terms, only the partnerRole of a partner link element can have a new value assigned. The myRole value doesn#39;t change after the BPEL has been deployed.

Note:

  • Dynamic Partner Links and Dynamic Addressing

    During the design-time of an application, you may need to configure certain services whose endpoints (addresses) are not known beforehand, or it may be necessary to change an endpoint reference while the application is running. The Dynamic Partner link feature allows you to dynamically assign an endpoint reference to the partner link. This means that you can use one partner link for subsequent calls to different web-services (provided that the services use the same interface).

  • For successful deployment of the process, a partner link should be completely defined. When you deploy the project, the WSDL file for the partner link should contain and define both the abstract and the concrete information for the partner link, including address and port, though later the concrete information can be changed independently from the WSDL file.

Question No: 48

View the Exhibit.

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The Exhibit shows a display from Enterprise manager Fusion Middleware Control where you can monitor and manage BPEL service engine properties. Where are all changes to this configuration stored?

  1. bpel_config.xml in MDS

  2. soa-infra-config.xml in $MW_HOME/soa/config on each physical host in cluster

  3. soa-infra-config.xml in the soa-infra-wls.ear file

  4. a temporary directory on each physical host in the cluster

Answer: B

Explanation: * The main controls of Oracle SOA Service Infrastructure can be configured using the soa-infra-config.xml file located in the DOMAIN_HOME/ config/soa- infra/configuration directory. In this file you can specify:

/ The data source JNDI name for process dehydration.

/ The server and callback URL

/ The audit level of information to be collected by the message tracking infrastructure.

Note:

  • In Oracle BPEL Process Manager 11g, you specify Oracle BPEL Process Manager

    engine properties in bpel-config.xml and soa-infra-config.xml (both are accessible as MBeans).

  • You can change the SOA Infrastructure ServerURL property port from Oracle Enterprise Manager Fusion Middleware Control Console. This automatically updates the port setting in the soa-infra-config.xml file under $DOMAIN_HOME/config/Domain_Name/configuration.

  • Since 11.1.1.2, bpel-config.xml is no longer available into the file system and therefore the only chance for modification is through EM Console.

* bpel-config.xml – Configurations for BPEL Engine. Incorrect:

Not C: Oracle SOA Service Infrastructure Services are contained in the soa-infra-wls.ear file.

Question No: 49

Which two are beneficial results of a successful SOA governance initiative?

  1. Maintains a direct connection between business objectives and the production and consumption of services

  2. Provides technical standards for the creation of web services.

  3. Prevents the proliferation of services of questionable utility, reliability and business value

  4. Develops strategy maps and value-chain analyses that help define business requirements

Answer: A,C

Question No: 50

By using the System Component Architecture (SCA) test framework, you can create tests for which three items?

  1. Reference binding components

  2. Service components like a Mediator

  3. Wires

  4. Invoke activities in a BPL process

  5. Composite sensors

Answer: A,B,C

Explanation: The test framework supports testing at the SOA composite application level. In this type of testing, wires (C), service binding components, service components (such as BPEL processes and Oracle Mediator service components) (B), and reference binding components (A) are tested.

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