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IBM Websphere Datastage V.8.0 Sample Questions:
1. What is the correct method to process a file containing multiple record types using the Complex Flat File stage?
A) Use a Modify stage to convert the output array from the Complex Flat File to a subrecord.
B) Manually break the file into multiple files by record type.
C) Use a Filter stage to pre-process the input to the Complex Flat File stage.
D) Define record ID constraints on the Records ID tab of the Complex Flat File stage.
2. Your customer asks you to identify which stages in a job are consuming the largest amount of CPU time. Which product feature would help identify these stages?
A) $APT_PM_SHOW_PIDS
B) $APT_PM_PLAYER_CPU
C) $APT_PM_PLAYER_TIMING
D) $APT_PM_DUMP_SCORE
3. Which two system variables/techniques must be used in a parallel Transformer derivation to generate a unique sequence of integers across partitions? (Choose two.)
A) @INROWNUM
B) @NUMPARTITIONS
C) @PARTITIONNUM
D) @INROWNUM+1
4. Which condition would require the use of a Custom Operator instead of a BuildOp or Transformer?
A) The stage requires dynamic metadata.
B) The stage is working with string variables.
C) The stage needs to run in parallel rather than sequentially.
D) The stage will call external routines written in C/C++.
5. A Data Set was created earlier with one partition. A subsequent job using a 2-node configuration file reads from that Data Set passing data to a Transformer stage with "Same" partitioning. Which statement is true?
A) Setting the Preserve Partitioning flag to "Set" will run one instance of the Transformer stage.
B) Setting the Preserve Partitioning flag to "Clear" will generate two instances of the Transformer stage.
C) DataStage will repartition the data and run one instance of the Transformer stage.
D) The DataStage job will abort.
Solutions:
Question # 1 Answer: D | Question # 2 Answer: C | Question # 3 Answer: B,C | Question # 4 Answer: A | Question # 5 Answer: B |