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

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

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

2. If data is being nzload'ed into TableA, which of the following operations will be blocked until the load has completed?

A) A SELECT from TableA
B) A DELETE from TableA
C) A TRUNCATE of TableA
D) An nzbackup of the database in which TableA resides

3. When a temporary table is created, where will the data be stored?

A) On the host under the /nz/tmp directory.
B) Held in physical memory on the S-Blades.
C) On the S-Blades under the data partition.
D) On the S-Blades under the swap partition.

4. Which two statistical data points are automatically updated when performing an INSERT on a table? (Choose two.)

A) The minimum and maximum column value information (excluding text columns).
B) The number of NULLs in each column.
C) The number of unique values in each column.
D) The number of rows in the table.
E) The column histogram statistics.

5. What is nzconvert used for?

A) To upgrade/downgrade the database to a different software version.
B) To convert between character encodings before loading data.
C) To translate stored procedures into NZPLSQL compatible syntax.
D) To convert compressed external tables into ASCII text.

Solutions: