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IBM WebSphere Operational Decision Management V8.0 Application Development Sample Questions:

1. An application developer is creating the enumeration LoanType in the Business Object Model (BOM). After creating a new class LoanType in the BOM using the BOM Editor, the application developer notices the following error: [B2X] Cannot find execution class ?LoanType? for translating business class ?LoanType? What should the application developer do to remove this error?

A) Specify java.lang.String as a super class.
B) Import the java.lang.String class.
C) Specify java.lang.String as the execution class.
D) Specify LoanType as the execution class.

2. A company is running 20,000 rules in one ruleset and experiences latency during some ruleset executions. No hot deployments are used. After reviewing the execution traces, the application developer recognizes that the performance is affected by reparsing of the same ruleset after overnight inactivity. What should the application developer do to minimize the impact of ruleset parsing and speed up performance?

A) Set the ruleset property ruleset.maxIdleTime to 0 to ensure the ruleset is not removed from cache.
B) Make sure the cache is empty before the first ruleset is parsed.
C) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.
D) In the ra.xml file, set the pool.maxSize parameter to make sure that the number of active rulesets is greater than the size of the XU connection pool.

3. The application developer needs to automate the rule project build process. The rule projects are stored in a Source Code Control system. What should the application developer do to automate the build process?

A) Use the Ant zip task to zip the rule project contents into a ruleset.
B) Copy the Rule Designer API library files onto the build machine, write a Java class to call a remotely running Rule Designer to generate the ruleset using the Rule Designer API.
C) Install Rule Designer on the build machine and write a Java class to call the rule engine API.
D) Install Rule Designer on the build machine and use the Rule Designer build automation tool to generate the ruleset.

4. An application developer is preparing to deploy the ruleset that uses a Java Execution Object Model (XOM) to a Java EE environment for remote access, using stateless rule sessions. What should the application developer do to ensure optimal execution performance?

A) In the ra.xml file, set the transaction-support property to LocalTransaction.
B) Disable Java 2 Security.
C) Change the Execution Unit (XU) traceLevel property from WARNING to FINE on the application server.
D) Set the ruleset property ruleset.sequential.trace.enabled to true.

5. The response time of Decision Center while browsing and editing rule artifacts is slow. What should the application developer do to improve the performance?

A) Use an Embedded Derby database.
B) Tune the JVM maximum heap size.
C) Augment the number of Business Object Model (BOM) entries and add more verbalizations.
D) Increase the Execution Unit (XU) connection pool size.

Solutions: