IBM A2090-421 Exam : Assessment: InfoSphere DataStage v8.5

A2090-421
  • Exam Code: A2090-421
  • Exam Name: Assessment: InfoSphere DataStage v8.5
  • Updated: Jun 03, 2026
  • Q & A: 194 Questions and Answers

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IBM Assessment: InfoSphere DataStage v8.5 Sample Questions:

1. You are using the Change Capture stage in your job design to identify changes made to the input link (before image) to obtain the results in the output link. This job will be using a multi-node configuration file when executed.
What are two requirements on the input link data for the Change Capture stage? (Select two)

A) Key partitioned
B) Sequential mode
C) Sorted
D) Merged links


2. Which three methods can be used to import metadata from a Web Services Description Language (WSDL) document? (Choose three.)

A) Web Service Function Definitions
B) Web Services WSDL Definitions
C) Orchestrate Schema Definitions
D) Job Stage Column tab properties entered using "Load" feature
E) XML Table Definitions


3. Which job design technique can be used to give unique names to sequential output files that are used in multi-instance jobs?

A) Generate unique file names by using a macro.
B) Use DSJobInvocationID to generate a unique filename.
C) Use a Transformer stage variable to generate the name.
D) Use parameters to identify file names.


4. The result of a performance review for one of your job designs indicated this job needs to be split into two separate jobs. You also have been given the requirement to ensure you maintain parallelism (no re-partitioning) between these two new jobs.
Which single stage should you consider to accomplish maintaining parallelism and not introduce re-partitioning between these related jobs?

A) Data Set stage
B) Copy stage
C) Named Pipe stage
D) Sequential File stage


5. Which three statements are true about stage variables in a Transformer Stage? (Choose three.)

A) Varchar stage variables can be initialized with spaces.
B) Stage variables can be set to NULL.
C) The expression executed for a stage variable can refer to a stage variable which is executed later.
D) Stage variables are refreshed with default values before each new input row is processed.
E) A stage variable in one Transformer can refer to a stage variable in another Transformer, as long as the second Transformer was processed earlier in the job flow.


Solutions:

Question # 1
Answer: B,D
Question # 2
Answer: A,B,E
Question # 3
Answer: D
Question # 4
Answer: D
Question # 5
Answer: A,B,C

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