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

1. What function can nzbackup perform?

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

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

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

3. A SELECT statement spends all its time returning 1 billion rows. What can be done to make this faster?

A) Use a CURSOR.
B) Use the COPY command.
C) Use an EXTERNAL table.
D) Increase the PreFetch Count.

4. Which command is used to abort a user's SQL transaction?

A) abort
B) kill
C) nzsession
D) nzstop

5. What should be considered when you are asked to select the distribution key columns for a very large fact table?

A) Columns used to join to other large tables.
B) As many columns as possible.
C) Columns that contain few unique values.
D) Columns that contain many nulls.

Solutions: