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

1. Which command would be used to obtain the name of the first active log file for a database with log retain enabled?

A) LIST INDOUBT TRANSACTIONS
B) GET DATABASE CONFIGURATION
C) LIST LOGFILES
D) GET CURRENT ACTIVE LOGFILE

2. What would indicate intra-partition parallelism in an Optimizer Plan?

A) LTQ
B) BTQ
C) DTQ
D) IP

3. Which description is correct when discussing the DB2_MEM_TUNING_RANGE registry variable?

A) It is recommended to set this variable only when using STMM, when DATABASE_MEMORY is set to AUTOMATIC, and if insufficient system memory problems are occurring.
B) It is recommended that this variable be enabled at all times in order to prevent DB2 from taking too much physical memory.
C) It is recommended that this variable be used to set the maximum percentage of memory that DB2 can use on the system.
D) It is recommended to set this variable only when the Self-Tuning Memory Manager (STMM) is disabled.

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

5. Which statement about compression and temporary tables is NOT correct?

A) Compression is only applied to created temporary tables that were defined with the CREATE TEMPORARY TABLE ?COMPRESS YES statement.
B) When executing queries that require temporary tables, DB2 considers the storage savings and the impact to query performance to determine whether compression is worthwhile.
C) The minimum size that a table must be before compression is used is larger for temporary tables than for regular tables.
D) The explain facility and the db2pd utility can be used to determine whether a temporary table has been compressed.

Solutions: