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

1. Which one of the following statements is TRUE about DB2 Workload Management (WLM)?

A) DB2 Workload Management allows you to assign resources to different workloads, which leads to a stable and predictable execution environment.
B) DB2 Workload Management guarantees the availability of data by replicating it to a stand-by server.
C) DB2 Workload Management can be used to schedule maintenance tasks such as BACKUPs, REORGs, or RUSTATS.
D) DB2 Workload Management requires several application changes in order to make the application aware of the WLM feature.

2. What is a DB2 instance?

A) DB2 does not use instances. It requires only databases to operate.
B) A DB2 instance is just another name for DB2 Database.
C) A DB2 instance is a logical database manager environment where you catalog databases and set configuration parameters.
D) A DB2 instance is a copy of a database that can be accessed standalone from the database server.

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

A) 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.
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) 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.
D) LBAC allows you to protect access only to rows, while RCAC allows you to protect both rows and columns.

4. With respect to DB2 security, what is authorization?

A) Authorization is the process where the DBA gathers information to see who will have access to the database.
B) Authorization is the process where the DB2 database checks with Windows security to see if you have access to the DB2 database.
C) Authorization is a process that checks whether you have sufficient privileges to perform the desired database operation.
D) Authorization is a process that validates that you are who you claim to be by verifying your user ID and password.

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