IBM : A2090-544 Questions & Answers
Updated: Sep 27, 2026
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IBM A2090-544 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: Database Monitoring and Troubleshooting | - Event monitoring and snapshot analysis - Locking issues and deadlock resolution |
| Topic 2: High Availability and Disaster Recovery | - HADR configuration and monitoring - Failover and recovery strategies |
| Topic 3: Security and Authorization | - Roles, privileges, and access control - Authentication and authorization models |
| Topic 4: Backup and Recovery | - Online and offline backups - Log management and rollforward recovery - Point-in-time recovery |
| Topic 5: Database Performance Tuning | - Memory tuning (buffer pools, sort heap, lock list) - Query optimization and explain plans - Index design and maintenance |
| Topic 6: Database Architecture and Configuration | - DB2 architecture components (instances, databases, bufferpools) - Configuration parameters and environment setup |
IBM Assessment: DB2 9.7 Advanced DBA for LUW Sample Questions:
An active partitioned instance named DB2INST1 uses the following db2nodes.cfg file:
1 server1 0
2 server1 1
3 server1 2
4 server1 3
The following command is issued to add a new database partition:
db2start DBPARTITIONNUM 5 ADD DBPARTITIONNUM HOSTNAME server1 PORT 4
Upon successful completion of the db2start command, which statement is true regarding the status of the instance DB2INST1?
- A. Partitions 1, 2, 3, and 4 are active, but partition 5 is not.
- B. DB2 responds to the configuration change by stopping all partitions.
- C. All partitions are active but partition 5 is not available until a temporary table space is defined.
- D. Partitions 1, 2, 3, 4, and 5 are active and available.
Correct Answer: A 🗳️
What steps, in the correct order, are performed by the SQL and XQuery compilers to generate executable code for non-federated queries?
- A. parse query; check semantics; rewrite query; build access plan
- B. check semantics; parse query; build access plan; pushdown predicates; execute access plan
- C. parse query; rewrite query; check semantics; pushdown predicates; execute access plan
- D. check semantics; parse query; rewrite query; build access plan
Correct Answer: A 🗳️
The RECOVER command is used in an attempt to fix a damaged table space. What will the system do during the RECOVER process?
- A. Prompt the user for new container definitions for damaged or missing containers.
- B. Restore the database and attempt to make as much of the database available as possible.
- C. Create a new temporary table space if the damaged table space is a temporary table space.
- D. Restore the database and bypass inaccessible containers and make the rest of the table space available.
Correct Answer: B 🗳️
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 (c6 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
- C. CREATE INDEX idx99 ON tab3 (c2 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
- D. CREATE INDEX idx98 ON tab3 (c6 ASC); CREATE INDEX idx99 ON tab3 (c9 DESC); RUNSTATS ON TABLE myschema.tab3;
Correct Answer: D 🗳️
Which statement is true about clustering indexes in a partitioned database?
- A. The clustering index column(s) should be suffixed by the partitioning key column(s).
- B. The clustering index column(s) should be prefixed by the partitioning key column(s).
- C. The partitioning key column(s) should be added to the clustering index with the INCLUDE option.
- D. The partitioning key column(s) should be added immediately after the column in the clustering index with the highest cardinality.
Correct Answer: B 🗳️
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