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IBM Websphere Datastage V.8.0 Sample Questions:

1. Which two job design techniques can be used to provide unique names to sequential output files that are used in multi-instance jobs? (Choose two.)

A) Create the file name(s) from values contained in a value file.
B) Prepend/append the Invocation Id to the file name.
C) Create the file name(s) from values contained in the data stream.
D) Use parameters to identify file names.

2. Which three statements describe a DataStage installation in a clustered environment? (Choose three.)

A) DataStage must be installed on the same kind of operating system as the metadata repository.
B) Compiled job and all shared components must be available across all servers.
C) For clustered implementations, appropriate node pools are useful to reduce data shipping.
D) All machines within the cluster must have connectivity to the metadata repository.
E) The conductor node will create the job score and consolidate messages to the DataStage log.

3. You are assigned to correct a job from another developer. The job contains 20 stages sourcing data from two Data Sets and many sequential files. The annotation in the job indicates who wrote the job and when, not the objective of the job. All link and stage names use the default names. One of the output columns has an incorrect value which should have been obtained using a lookup. What could the original developer have done to make this task easier for maintenance purposes?

A) Name all stage and links the same.
B) Indicate all stage names within the job annotation.
C) Name all stages and links based on what they do.
D) Name all stage and links with column names and ideas.

4. Records in a source file must be copied to multiple output streams for further processing. Which two conditions would require the use of a Transformer stage instead of a Copy stage? (Choose two.)

A) Copying all records to all output streams
B) Copying certain records to certain output streams
C) Dropping one or more columns of data
D) Combining data from multiple columns into one column

5. Which three actions can improve sort performance in a DataStage job? (Choose three.)

A) Run the job sequentially so that only one sort process is invoked.
B) Adjusting the "Restrict Memory Usage" option in the Sort stage.
C) Minimize the number of sorts used within a job flow.
D) Use the stable-sort option to avoid the random ordering of non-key data.
E) Specify only the key columns which are necessary.

Solutions: