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

1. Within a pricing application, there are three valid regions: A, B, and C.
The pricing rules currently include this decision table. The current version of this table has a gap in the rules and does not assign a discount for Gold customers in region C.
To prevent this rule from getting deployed in the future, gaps for this decision table should be treated as an error.

What should the application developer do in Rule Designer to treat gaps as an error condition within this decision table?

A) From the decision tables properties, turn on gap checking for all condition columns and set the reporting of gaps to an error level.
B) From the column condition builder, turn on check interval for each condition column.
C) From the decision tables properties, turn on gap checking for all condition columns and enforce locking for this table.
D) From the general tab, update the preconditions section with gapChecking=true;

2. A Hosted Transparent Decision Service (HTDS) for a car insurance company has the following input and output. Input: A form that includes information about the driver, the vehicle and the type of insurance. Output: The cost of insurance if the request is eligible. How should the application developer implement this flow of information between the calling application and the decision service?

A) Implement a database call that is triggered during rule execution so the rule engine can access all relevant driver, vehicle, and insurance information. Define a ruleset variable to return the decision results.
B) Implement an IlrContext subclass to populate the working memory with all the driver, vehicle, and insurance objects. Define a ruleset parameter to return the decision results.
C) Define one ruleset parameter to pass the driver, vehicle, and insurance information to the rule engine. Define one ruleset parameter to return the decision results.
D) Define three ruleset variables for the application to pass the driver, vehicle, and insurance input objects. Define one ruleset parameter to return the decision results.

3. An application developer is required to implement the following business policy represented by this pseudo code which has a set of non-symmetrical rules.

IBM 000-400 Exam
What rule artifact(s) should the application developer author?

A) Two business action language rules using the else statement in both.
B) A decision tree with multiple branches.
C) A decision table with a precondition, three condition columns, and multiple action columns.
D) A decision table without preconditions, four condition columns, and multiple action columns.

4. An application developer is validating a rule project in Rule Designer and needs to create a new DVS Excel File Run Configuration. Instead of testing all of the rules, the new run configuration must also specify a subset of the rules to test. Which setting in the run configuration must the application developer apply?

A) On the Excel File tab, click Browse next to Rule Project and specify the rules to test.
B) On the Extraction tab, select to use an extractor which specifies the rules to test.
C) On the Excel File tab, specify the rules to test.
D) On the Rules tab, specify the rules to test.

5. 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) In the ra.xml file, set the asynchronousRulesetParsing property to false to handle concurrent requests.
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.

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