IBM P2090-018 Exam : IBM Information Management DB2 10 Technical Mastery Test v3

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IBM P2090-018 Exam Syllabus Topics:

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

1. 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 copy of a database that can be accessed standalone from the database server.
D) A DB2 instance is a logical database manager environment where you catalog databases and set configuration parameters.

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

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

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

A) 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.
B) STMM allows DBAs to inspect the current memory allocation by buffer pools.
C) 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.
D) 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.

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

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