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IBM InfoSphere DataStage v8.5 Sample Questions:

1. You are required to use a Make Vector stage in your job. What three requirements must be met in order to use this stage? (Choose three.)

A) All columns are combined into a vector of the same length as the number of columns.
B) Input columns that do not have a name of form <column_name>0 to <column_name>n, where <column_name> is the column name and 0 and n are the first and last of its consecutive numbers will not be included in the vector and will be dropped.
C) Input columns must form a numeric sequence.
D) Input columns must all be of the same data type.
E) Columns must be in consecutive order.

2. A customer requires reading a fixed-length sequential file in parallel where input rows can be identified. What two tasks must be done to meet these requirements? (Choose two.)

A) Set partitioning method to Same.
B) Set $APT_READ_MULTI_NODES to TRUE.
C) Ensure data has unique identifiers for data rows.
D) Specify Multiple readers per node.

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

4. You are given a job requirement that requires calculations based on the latest currency exchange rate. You decide to invoke a Web service to obtain the latest exchange rate.
What are two ways that you can perform a Web service invocation in a DataStage job to obtain the latest exchange rate? (Select two)

A) Use Web Services Transformer stage.
B) Use WISD Input stage.
C) Use Web Services Client stage as a lookup.
D) Call a Web Service using a DSRoutine inside the Parallel Transformer stage.

5. You are describing to your customer how to work with packages. There are two steps that must be carried out in order to move the package to a target project. Which two steps must be carried out to move the DataStage objects to the Production system? (Choose two.)

A) Deploy
B) Build
C) Export
D) Package
E) Compile

Solutions: