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IBM 000-400 Exam Syllabus Topics:

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

1. An application developer needs to create a read-only attribute age in the Business Object Model (BOM) member Customer . The BOM uses a Java Execution Object Model (XOM). What should the application developer add to the XOM member that maps to the BOM member Customer?

A) A method protected int getAge();
B) An attribute private int age;
C) A method public int getAge();
D) A method private int getAge();

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

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

4. 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) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.
B) Set the ruleset property ruleset.maxIdleTime to 0 to ensure the ruleset is not removed from cache.
C) 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.
D) Make sure the cache is empty before the first ruleset is parsed.

5. A ruleset contains one rule task that uses RetePlus execution mode, and one rule task that uses FastPath. For troubleshooting purposes, the application developer implements logging of the names of all the rules fired for every ruleset execution, using the API IlrSessionRequest.setTraceEnabled(true) and IlrSessionResponse.getRulesetExecutionTrace(). What property should the application developer also configure on the ruleset?

A) ruleset.trace.enabled = true
B) ruleset.sequential.trace.enabled = true
C) ruleset.bom.enabled = true
D) ruleset.optimization.enabled = false

Solutions: