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IBM Certified Database Administrator - IBM IMS Sample Questions:

1. DB2's High Availability and Disaster Recovery (HADR) feature provides a high availability solution for both partial and complete site failures. Given the sentences below, select the CORRECT statement about HADR.

A) HADR protects against data loss by replicating data changes from a source database, called the primary, to a target database, called the standby.
B) HADR feature is only available for DB2 Advanced Enterprise Edition.
C) HADR protects against data loss by replicating data changes from a backup database file to a standby database.
D) HADR protects against data loss by saving data changes from a source database into a local recovery log file.

2. 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) 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) 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.

3. What are DB2 access plans?

A) An access plan is a plan that is created for each table, describing which users or queries willhave 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 fromthe network administrator, to list who will have access to database from the point of view of theoperating 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 parametersrelevant to optimization.
D) An access plan is the result of the planning phase for the installation of the DB2 product. Ittakes into account who will access the database and which permissions they will have.

4. Which one of the following options is CORRECT about Temporal Tables?

A) Temporal tables require constant changes to the operating system timestamp in order to navigate through time in the database.
B) Temporal tables are used to model data in the past, present, and future.
C) Temporal tables are used to model data in the past and present. They cannot be used to model data in the future.
D) Temporal tables are complex to maintain and require major application changes.

5. What happens when an unqualified GN call is issued after a GB status code (end of database) is received?

A) The last segment successfully retrieved is returned in the IOArea.
B) The first segment in the database is retrieved.
C) The GB status code is repeated.
D) A GE status code (segment not found) is returned.

Solutions: