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IBM InfoSphere DataStage v9.1 Sample Questions:

1. Rows of data going into a Transformer stage are sorted and hash partitioned by the Input.Product column. Using stage variables, how can you determine when a new row is the first of a new group of Product rows?

A) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".
B) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product <> sv_Product THEN "YES"
ELSE "NO".
C) Create a stage variable named sv_Product and follow it by a second stage variable named
sv_IsNewProduct. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".
D) Create a stage variable named sv_IsNewProduct and follow it by a second stage variable
named sv_Product. Map the Input.Product column to
sv_Product. The derivation for sv_IsNewProduct is: IF Input.Product = sv_Product THEN "YES"
ELSE "NO".

2. A job validates account numbers with a reference file using a Join stage, which is hash partitioned by account number. Runtime monitoring reveals that some partitions process many more rows than others. Assuming adequate hardware resources, which action can be used to improve the performance of the job?

A) Change the number of nodes in the configuration file.
B) Use Round Robin partitioning on the stream and Entire partitioning on the reference.
C) Replace the Join with a Merge stage.
D) Add a Sort stage in front of the Join stage. Sort by account number.

3. The number of File Set data files created depends upon what two items? (Choose two.)

A) Number of logical processing nodes.
B) Amount of memory.
C) Schema definition of the file.
D) Number of disks in the export or default disk pool connected to each processing node in the default node pool.
E) Operating system limitations.

4. What two binding types are supported by Information Services Director (ISD) for a parallel job that is designed to be used as a service? (Choose two.)

A) SOAP
B) SQL
C) STREAMS
D) HDFS
E) EJB

5. You are responsible for deploying objects into your customers production environment. To ensure the stability of the production system the customer does not permit compilers on production machines. They have also protected the project and only development machines have the required compiler. What option will enable jobs with a parallel transformer to execute in the customers production machines?

A) Use protected projects in the production environment.
B) Add $APT_COMPILE_OPT=-portable
C) Create a package with Information Server Manager and select the option to include executables.
D) Set $APT_COPY_TRANSFORM_OPERATOR

Solutions: