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

1. Which of the following options best defines the Label-Based Access Control (LBAC) feature?

A) DB2 LBAC is the DB2 authority in charge of issuing GRANT and REVOKE statements.
B) DB2 LBAC lets you decide exactly who has write/read access to individual rows and columns by comparing the security labels between database objects and users.
C) DB2 LBAC allows you to use labels to reference database objects by a short name instead of the full qualified name.
D) DB2 LBAC monitors table data access and tables modifications made by database users.

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

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

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

A) DB2 Workload Management uses workloads to identify incoming work based on the connection attributes under which the work is submitted.
B) DB2 Workload Management allows dynamic re-prioritization of work by remapping a workload to a different service class.
C) DB2 Workload Management dispatcher can be used to control sharing of memory resources among active workloads.
D) When a WLM threshold condition is violated an action is executed in order to maintain stability in the system.

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

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

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