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

1. The simplest query execution plan file must have the following minimum nodes?

A) ScanNode, RestrictNode, LimitNode, ReturnNode
B) ScanNode, RestrictNode, AggregateNode, ReturnNode
C) ScanNode, RestrictNode, HashNode, ReturnNode
D) ScanNode, RestrictNode, ProjectNode, ReturnNode

2. Given the following query: Select count(*) from TableA; How can you view the query plan without executing the query?

A) Use pg.log file.
B) Use statistics.
C) Set show_plan = true;
D) Use explain.

3. Within a single PureData System for Analytics, what is the fastest way to copy a 10TB TableA from DatabaseA to another DatabaseB?

A) Use the COPY command.
B) Use a CTAS (Create Table as Select) SQL statement.
C) Use nzbackup and nzrestore commands.
D) Use external tables and UNIX pipes.

4. Which two characteristics describe materialized views. (Choose two.)

A) Materialized views can contain aggregates.
B) Materialized views can contain a WHERE clause.
C) Materialized views can contain an ORDER BY clause.
D) Materialized views can contain a HAVING clause.
E) Materialized views can reference only onebase table in the FROM clause.

5. Given a plan ID, how would you obtain the query execution plan? (Choose two.)

A) Run EXECUTION PLAN before the query has been submitted.
B) Go to the query history within the Windows NzAdmin GUI tool.
C) Turn ODBC tracing ON.
D) Issue "SELECT * FROM _V_SESSION;"
E) Issue "SHOW PLANFILE <nn>;" after the query has been submitted.

Solutions: