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

1. When doing a CREATE TABLE, constraints can be specified at the column level. Which two constraints are NOT automatically enforced via the database? (Choose two.)

A) NULL
B) NOT NULL
C) UNIQUE
D) PRIMARY KEY
E) DEFAULT value

2. Which User Defined Function (UDF)statement is true?

A) It accepts exactly one input value and produces exactly one output value.
B) It accepts zero or more input values and produces one or more output values.
C) it accepts exactly one input value and produces one or more output values.
D) It accepts zero or more input values but produces one output value.

3. Columns in a table may be zonemapped. How are those columns chosen?

A) They are added via the ALTER TABLE ADD ZONEMAP(column_name) statement.
B) They are automatically selected by the system.
C) They are based on the same columns as the table's distribution key.
D) They are added via the ALTER TABLE ADD INDEX(column_name) statement.

4. What function can nzbackup perform?

A) Back up TEMP tables.
B) Back up pg.log files.
C) Back up the data using the specified number of streams.
D) Back up host data (catalog metadata).

5. What are two considerations for usage of materialized views? (Choose two)

A) Materialized views are logical entities.
B) Materialized views may improve query performance.
C) Materialized views are the same as database views.
D) Materialized views are considered for usage by the Optimizer.
E) Materialized views are not supported.

Solutions: