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IBM A2090-544 Exam Syllabus Topics:

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

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

2. A Windows user with a local database is not able to connect to a zOS database. The System Database Directory and the Node Directory have the correct entries. Other users can connect to the database from their workstations without problems. What should be done resolve the problem?

A) Catalog the zOS database in the Distributed Data Facility Directory.
B) Catalog the zOS database in the Database Connection Services Directory.
C) Uncatalog and re-catalog the directory entries for the zOS database and try again.
D) Catalog the zOS database in the Local Database Directory.

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

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

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

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

5. Given the following output from the GET DATABASE CONFIGURATION command:

Which of the following DB configurations listed below will enable circular logging?

A) LOGARCHMETH1=OFF and LOGARCHMETH2=OFF
B) LOGSECOND=-1
C) LOGRETAIN=CIRCULAR
D) LOGPRIMARY=LOGCIRCULAR and LOGRETAIN=OFF

Solutions: