Your job aggregates data before writing the results out to a DB2 table. You have since learned that this job will
be required to aggregate very large amounts of data. To ensure high performance you create a new, nondefault
configuration file for the job that defines a node pool named “highperfnodes” that includes only nodes with very
high processing power. What additional design changes do you need to make to the job to ensure that it
aggregates the data using the “highperfnodes” pool? (Choose two.)

A.
Select the “highperfnodes” pool in the Execution tab of the Job Properties window

B.
Add the $APT_CONFIG_FILE environment variable as an additional job parameter

C.
Add a Sort stage before the Aggregator stage to sort the data before the data is aggregated

D.
Change properties in the Aggregator stage to force it to use the nodes in the appropriate pool

E.
Change properties in the Aggregator stage to force it to use the new non-default configuration file