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IBM Certified Database Administrator - IBM IMS Sample Questions:

1. What is a buffer pool in DB2?

A) A buffer pool is a logical storage grouping composed of one or more containers.
B) A buffer pool is a pool of connection buffers that increases performance of applications connecting to
the DB2 server.
C) 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.
D) A buffer pool is a DB2 component that manages connections to databases.

2. Which one of the following options is TRUE about High Availability and Disaster Recovery (HADR)
feature?

A) HADR allows up to two HADR standby databases.
B) HADR allows up to three HADR standby databases.
C) HADR allows up to five HADR standby databases.
D) HADR allows up to four HADR standby databases.

3. What are DB2 access plans?

A) An access plan is a plan that is created for each table, describing which users or queries will have
access to the data that is contained in that particular table.
B) An access plan is part of the security audit that is performed by the DBA, with assistance from the
network administrator, to list who will have access to database from the point of view of the operating
system.
C) An access plan is one that specifies an order of operations for accessing data in a SQL query. It lets
you view statistics for selected tables, indexes, or columns; properties for operators; global information,
such as table space and function statistics; and configuration parameters relevant to optimization.
D) An access plan is the result of the planning phase for the installation of the DB2 product. It takes into
account who will access the database and which permissions they will have.

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

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

5. What is the purpose of the Adaptive, self-tuning memory allocation feature in DB2?

A) The purpose of this feature is for the system to deliver to you a report of tuning specifications for the
database so that you can update the configuration parameters by hand.
B) This feature will help to reduce the task of configuring your DB2 server by continuously updating
configuration parameters, resizing buffer pools, and dynamically determining the total amount of memory
to be used by the database.
C) This feature will detect memory allocation expansion in the database and deliver a warning to the DBA
to let them know when the database is nearing a threshold space allocation limit.
D) This feature does not exist in DB2.

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