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IBM P2090-018 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Product Overview & New Features | 20% | - Edition comparison and positioning - DB2 10 new capabilities |
| Topic 2: Fundamental Concepts & Tools | 40% | - Administration and development tools - Memory management and buffer pools - Security, authentication, authorization - DB2 architecture, instances, databases, storage |
| Topic 3: Advanced Features & Value Proposition | 40% | - Temporal tables and data management - pureScale overview - Workload Management (WLM) - Partitioning and compression - High Availability and Disaster Recovery (HADR) - Row/Column Access Control (RCAC/LBAC) |
IBM Information Management DB2 10 Technical Mastery Test v3 Sample Questions:
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. 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.
- 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. 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.
Which one of the following options is CORRECT about Temporal Tables?
- A. Temporal tables are complex to maintain and require major application changes.
- B. Temporal tables are used to model data in the past and present. They cannot be used to model data in the future.
- C. Temporal tables require constant changes to the operating system timestamp in order to navigate through time in the database.
- D. Temporal tables are used to model data in the past, present, and future.
How does automatic storage work in DB2?
- A. Automatic storage is a function of DB2 that allows tables to be backed up automatically on a set schedule.
- B. Automatic storage is an option which is set when you create a DB2 database. It allows transactions that are executed to be automatically committed.
- C. Automatic storage simplifies storage management by allowing you to specify storage paths where the database manager can place table space data.
- D. Automatic storage allows automatic allocation of free space in memory for optimizing query execution.
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 can be used to schedule maintenance tasks such as BACKUPs, REORGs, or RUSTATS.
- C. DB2 Workload Management guarantees the availability of data by replicating it to a stand-by server.
- D. DB2 Workload Management requires several application changes in order to make the application aware of the WLM feature.
