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IBM Assessment: IBM InfoSphere DataStage v9.1 Assessment Sample Questions:
1. You are experiencing performance issues for a given job. You are assigned the task of understanding what is happening at run time for that job. What step should you take to understand the job performance issues?
A) Run the job with $APT_TRACE_RUN set to true.
B) Replace Transformer stages with custom operators.
C) Run the job with $APT_DUMP_SCORE set to true.
D) Replace Join stages by Lookup stages.
2. Which two parallel job stages allow you to use partial schemas? (Choose two.)
A) Data Set stage
B) Peek stage
C) External Target stage
D) Column Export stage
E) File Set stage
3. Which statement is true when using the SaveInputRecord() function in a Transformer stage.
A) You can access the saved queue records using Vector referencing in Stage variable derivations.
B) You must retrieve all saved queue records using the GetSavedInputRecord() function within Loop variable derivations.
C) You must retrieve all saved queue records using the GetSavedInputRecord() function within Stage variable derivations.
D) You can only use the SaveInputRecord() function in Loop variable derivations.
4. Which two statements about using a Load write method in an Oracle Connector stage to tables that have indexes on them are true? (Choose two.)
A) Set the Index mode property to "Bypass".
B) Set the Upsert mode property to "Index".
C) The Load Write method uses "Rebuild" mode with no logging automatically.
D) The Load Write method uses the Parallel Direct Path load method.
E) Set the environment variable APT_ORACLE_LOAD_OPTIONS to "OPTIONS (DIRECT=TRUE, PARALLEL=FALSE)".
5. Your job is using the Sequential File stage as a source. Identify two stage property configurations that will allow you to accomplish parallel reads? (Choose two.)
A) Read Method property set to 'File Pattern' and the environment variable $APT_IMPORT_PATTERN_USES_FILESET is set to 'FALSE'.
B) Read Method property set to 'Specific File(s)' with more than one file specified and each file specified has the same format/column properties.
C) Read Method property set to 'Specific File(s)' with only one file specified and the 'Readers Per Node' property value set to greater than 1.
D) Read Method property is set to 'Parallel' with the Key property set to a Input column that has the file names.
E) Read Method property set to 'File Pattern' and the 'Readers per Node' property value set to greater than 1.
Solutions:
Question # 1 Answer: C | Question # 2 Answer: C,E | Question # 3 Answer: B | Question # 4 Answer: D,E | Question # 5 Answer: B,C |