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IBM A2090-544 Exam Syllabus Topics:

IBM Assessment: DB2 9.7 Advanced DBA for LUW Sample Questions:

1. Which method should be used to construct an LBAC security component that represents a person's level of trust?

A) TREE
B) SET
C) ARRAY
D) ORDER

2. A DBA migrating an existing database to DB2 9.7 wants to allow the primary and secondary recovery logs to be used with non-buffered IO. Which statement is true?

A) The DB2_LOGGER_NON_BUFFERED_IO registry variable must be set to AUTO.
B) The DB2_LOGGER_BUFFERED registry variable must be set to OFF.
C) The DB2_LOGGER_AUTO_BUFFERED registry variable must be set to YES.
D) This behavior is automatically enabled by default.

3. Click the Exhibit button.

Refer to the table definition shown in the exhibit.
Which will improve performance based on the query SELECT c6, c9 FROM tab3 WHERE c9 = 123456?

A) CREATE INDEX idx99 ON tab3 (c2 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
B) CREATE INDEX idx99 ON tab3 (c6 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
C) CREATE INDEX idx98 ON tab3 (c2 ASC, c6 ASC); CREATE INDEX idx99 ON tab3 (c2 ASC, c9 ASC); RUNSTATS ON TABLE myschema.tab3;
D) CREATE INDEX idx98 ON tab3 (c6 ASC); CREATE INDEX idx99 ON tab3 (c9 DESC); RUNSTATS ON TABLE myschema.tab3;

4. A table named TAB_A was created with the COMPRESS YES option specified and populated with 100,000 rows. If a DBA wants to create an index on table TAB_A, which statement is true?

A) In order for the index to be compressed, it must be enabled for compression by specifying the COMPRESS YES option in the CREATE INDEX statement used to create it; however, the index will not be compressed until the ALTER INDEX command is used to create an index compression dictionary.
B) The index will automatically be compressed since the table it is associated with is compressed; the ALTER INDEX command does not have to be executed.
C) In order for the index to be compressed, it must be enabled for compression by specifying the COMPRESS YES option with the CREATE INDEX statement that is used to create it.
D) The index will automatically be enabled for compression because the associated table is compressed; however, the index will not be compressed until it is REORGed.

5. A DBA would like to examine repartitioning options for a partitioned database named PRODDB. Which tool can be used to provide recommendations on re-partitioning?

A) Partition Assistant
B) Design Advisor
C) Workload Manager
D) Configuration Advisor

Solutions: