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

1. A company implemented a report data validation system with business rules. As there is a large volume of data, the design team has decided to run validations in batch and parallel mode. The ruleset will be executed in Java SE and the maximum number of threads executing rules is 20). When an application developer tests the rule execution code, the following exception comes up: ilog.rules.res.session.IlrSessionException: An error occurred while the rule session was called: ilog.rules.res.xu.cmanager.impl.IlrLocalizedResourceAllocationException: Default connection manager pool is full, error code: GBRXU0200E ilog.rules.res.xu.pool.IlrPoolException: Pool of connections is full What should the application developer do to resolve the exception?

A) Configure the IlrSessionRequest class to set connection pool size to 20.
B) Edit the resource adapter descriptor file ra.xml to set the pool.maxSize property to 20.
C) Set pool size of the Execution Unit (XU) connection factory in the application server to 20.
D) Set the ruleset property pool.maxSize to 20.

2. The business users require the ability to maintain Business Object Model (BOM) domains using the Decision Center. To address this requirement, the application developer should create:

A) domains of bounded type.
B) domains of collection type.
C) domains of static references.
D) domains from Excel files.

3. A rule task associated with 10 action rules performs elaborate computations on a set of objects. The action part of the rules changes the state of the objects involved in the conditions so that the firing of one rule may cause another rule to fire. For the computation to be correct, the firing of rules should continue until there are no more rules eligible to fire. How should the application developer implement this requirement? Set the rule task algorithm to:

A) Fastpath and implement a loop construct in the ruleflow
B) RetePlus and check "Update object state" on BOM members as needed
C) Fastpath and check "Update object state" on BOM members as needed
D) Sequential and implement a loop construct in the ruleflow

4. After a company deploys their rules to production, a series of new business policies affect several of the deployed rules. The rule authors fix the rules, and the updated ruleset is deployed.
However, another business policy change makes some of the rule fixes incorrect and the original rules need to be reinstated. The rule authors ask for help from the application developer so that they do not lose their correct changes. What should the application developer do?

A) Erase the current project and synchronize with Rule Designer to get the originally deployed rules.
B) Restore the baseline so that it becomes the current state of the project so that the rule authors redo the appropriate rule changes.
C) Clone the deployment baseline to a branch, and use the Diff and Merge tool to select the correct rules to keep on the current branch of the project.
D) Unfreeze the deployment baseline so the rule authors can fix the rules again, and then redeploy the baseline.

5. A ruleset is deployed to Rule Execution Server and the rule administrators requested that Decision Warehouse be used to store trace information about ruleset executions. What should the application developer do to activate tracing on the already deployed ruleset?

A) Use the res-deploy Ant task with the correct parameters to enable tracing on the deployed ruleset.
B) Tracing cannot be enabled without deploying the ruleset again with the monitoring.enabled ruleset property set to true.
C) Navigate to the ruleset within Rule Execution Server console and add the ruleset.trace.enabled property.
D) Navigate to the ruleset within Rule Execution Server console and click the Show Monitoring Options to enable tracing.

Solutions: