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IBM InfoSphere DataStage v8.5 Sample Questions:

1. The Teradata Enterprise stage uses a distributed FastExport to access data. What is a limitation to distributed FastExport?

A) The use of the USING modifier is allowed.
B) Aggregates and most arithmetic operators in the SELECT statement are allowed.
C) Multiple-AMP requests are allowed.
D) Non-data access (e.g., pseudo-tables like DATE or USER) is allowed.

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

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

3. What two data sources support direct lookups? (Select two)

A) ODBC
B) Oracle
C) SqIServer
D) Teradata
E) DB2

4. A 100MB input dataset has even distribution across 400 unique key values.
When run with a 4-node configuration file, which two changes could improve sort performance in this scenario? (Select two)

A) Alter the Sort stage properties to perform a stable sort.
B) Convert all numeric fields to varchars.
C) Set $APT_TSORT_STRESS_BLOCKSIZE to 50M
D) Specify "Restrict Memory Usage" to 60MB on the Sort stage properties.
E) Specify Round Robin partitioning on the input link to the Sort stage.

5. Which three statements are true about File Sets? (Choose three.)

A) File sets are stored as header file and data files.
B) File sets are readable by external applications.
C) File sets always execute in parallel.
D) File sets are partitioned.
E) File sets have a proprietary data format which may change in future DataStage versions.

Solutions: