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IBM A2090-544 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Database Performance Tuning | - Index design and maintenance - Memory tuning (buffer pools, sort heap, lock list) - Query optimization and explain plans |
| Database Architecture and Configuration | - DB2 architecture components (instances, databases, bufferpools) - Configuration parameters and environment setup |
| Database Monitoring and Troubleshooting | - Locking issues and deadlock resolution - Event monitoring and snapshot analysis |
| High Availability and Disaster Recovery | - HADR configuration and monitoring - Failover and recovery strategies |
| Security and Authorization | - Authentication and authorization models - Roles, privileges, and access control |
| Backup and Recovery | - Log management and rollforward recovery - Online and offline backups - Point-in-time recovery |
IBM Assessment: DB2 9.7 Advanced DBA for LUW Sample Questions:
What steps, in the correct order, are performed by the SQL and XQuery compilers to generate executable code for non-federated queries?
- A. check semantics; parse query; 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. parse query; check semantics; rewrite query; build access plan
Correct Answer: D 🗳️
In order for HADR to start, which statement is true when setting the HADR_TIMEOUT database configuration value?
- A. Changes to the HADR_TIMEOUT value will take effect immediately.
- B. The HADR_TIMEOUT value must be identical on both the primary and the standby server.
- C. If the HADR_TIMEOUT value is set to -1, connection timeouts will not occur.
- D. If the HADR_TIMEOUT value is different between the two servers, the lowest value is used.
Correct Answer: B 🗳️
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 with the CREATE INDEX statement that is used to create it.
- B. 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.
- C. 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.
- D. 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.
Correct Answer: C 🗳️
Given the following table definition in a multi-partitioned database:
Which column(s) will be chosen by DB2 as a distribution key (partitioning key)?
- A. EMP_ID
- B. NAME
- C. SS_ID, EMP_ID, and NAME
- D. SS_ID
Correct Answer: D 🗳️
What determines the degree of inter-partition parallelism used?
- A. The value of the INTER_PARALLEL Database Manager configuration parameter.
- B. The number of database partitions and the definition of partition groups.
- C. The number of database connections and the definition of partitions groups.
- D. The value of the DFT_DEGREE database configuration parameter.
Correct Answer: B 🗳️
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