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IBM Information Management DB2 10 Technical Mastery Test v3 Sample Questions:

1. Which of the following is TRUE about PL/SQL support in DB2?

A) DB2 requires third party software to execute PL/SQL statements.
B) PL/SQL support is only enabled when using federation to access other vendor databases.
C) The DB2 compiler can process PL/SQL statements and create the required objects in the database. The PL/SQL support is enabled by setting the DB2_COMPATIBILITY_VECTOR registry variable.
D) You can only execute PL/SQL statements using the CLPPIus interface.

2. Which of the following options best describes the differences between Label Based Access Control (LBAC) and Row and Column Access Control (RCAC)?

A) RCAC returns the data based on what is being asked (data centric), while LBAC returns data based on who is asking what (user centric). Users with DATAACCESS authority are exempt from the Row and Column Access Control rules.
B) RCAC is a fixed label security model designed for the US government while LBAC is a general purpose security model best suited for commercial customers.
C) With RCAC users do not get an error when accessing protected data, while with LBAC users can get an error if they don't have the necessary credentials to access a LBAC protected column.
D) LBAC allows you to protect access only to rows, while RCAC allows you to protect both rows and columns.

3. Which one of the following options is CORRECT about Temporal Tables?

A) Application-period temporal tables combine the historical tracking of a system-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information.
B) System-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows.
C) System-period temporal tables combine the historical tracking of an Application-period temporal table with the time-specific data storage capabilities of a bitemporal table. They are used to keep user-based period information as well as system-based historical information.
D) Application-period temporal tables are used to keep historical versions of records in a table. They use a history table to transparently store updated and deleted data rows.

4. What is the DB2 Design Advisor?

A) The DB2 Design Advisor is a help desk facility that is available to all licensed DB2 owners that have paid their maintenance agreements with IBM. The tool is a web site that guides you through the design of your database, with the DBA responding to a series of questions. It produces a database schema that allows for quick database creation.
B) The DB2 Design Advisor is a tool that can help you improve your database workload performance. Given a set of SQL statements in a workload, the Design Advisor can generate recommendations to improve the performance of SQL execution.
C) The DB2 Design Advisor is a tool that automatically analyzes your running database and continuously makes changes to your database to give it peak performance.
D) The DB2 Design Advisor is a tool that can be used to automatically create tables based on a physical data diagram.

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