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IBM P2090-018 Exam Syllabus Topics:

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

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

A) 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.
B) 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.
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.

2. What is the purpose of the Self Tuning Memory Manager (STMM) in DB2?

A) This feature detects memory expansion in the database and delivers a warning to the DBA to let them know when the database is nearing a threshold memory allocation limit.
B) The purpose of this feature is for the system to deliver to you a report of database tuning recommendations so that you can update the configuration parameters by hand.
C) STMM allows DBAs to inspect the current memory allocation by buffer pools.
D) This feature reduces the task of configuring your DB2 server by continuously updating memory configuration parameters, resizing buffer pools, and dynamically determining the total amount of memory to be used by the database.

3. What is a buffer pool in DB2?

A) A buffer pool is a DB2 component that manages connections to databases.
B) A buffer pool is an area of main memory that has been allocated by the database manager for the purpose of caching table and index data as it is read from the physical media.
C) A buffer pool is a logical storage grouping composed of one or more containers.
D) A buffer pool is a pool of connection buffers that increases performance of applications connecting to the DB2 server.

4. How can you verify that a DB2 installation was successful?

A) Verification is automatically performed by the AUTO_CONFIGURE feature.
B) Verification is performed by running the VERIFY INSTALL command.
C) Verification can be done by successfully creating a SAMPLE database and running SQL commands to retrieve sample data.
D) Verification is completed by the DBA using the database verification toolkit.

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