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IBM PureData System for Analytics Technical Mastery Test v1 Sample Questions:

1. Whyshould you avoid using Boolean data types as a distribution key for a table ?

A) Table will not join.
B) Table will not broadcast.
C) Table is likely to be skewed.
D) Table is likely to be evenly spread across data slices.

2. What two conditions must be met to achieve a collocated join between two tables? (Choose two.)

A) Both join columns have identical data types.
B) Both tables must be distributed on their join column.
C) Both tables must be distributed on random.
D) Both join columns have the same name.
E) Both tables have primarykeys defined.

3. What will occur when two tables are joinedtogether and the data is NOT collocated?

A) Data is dynamically redistributed or broadcasted.
B) A merge join operation will be performed.
C) A cluster based join method is performed.
D) No data movement is required.

4. When are zonemaps initially created for a table?

A) CREATE TABLE
B) nzreclaim
C) ALTER TABLE ADD ZONEMAPS
D) nzbackup

5. Which is NOT a function of the FieldProgrammable Gate Arrays (FPGA) residing on the Netezza Database Accelerator card?

A) Aggregates
B) Projects
C) Decompresses
D) Restricts

Solutions: