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IBM C2090-544 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Database Performance Tuning | - Memory tuning (buffer pools, sort heap, lock list) - Query optimization and explain plans - Index design and maintenance |
| Database Monitoring and Troubleshooting | - Locking issues and deadlock resolution - Event monitoring and snapshot analysis |
| Backup and Recovery | - Online and offline backups - Point-in-time recovery - Log management and rollforward recovery |
| Security and Authorization | - Roles, privileges, and access control - Authentication and authorization models |
| High Availability and Disaster Recovery | - Failover and recovery strategies - HADR configuration and monitoring |
| Database Architecture and Configuration | - Configuration parameters and environment setup - DB2 architecture components (instances, databases, bufferpools) |
IBM DB2 9.7 Advanced DBA for LUW Sample Questions:
While attempting to establish connectivity between a Windows client and a UNIX server, the following commands were issued from the Windows client:
CATALOG TCPIP NODE node001 REMOTE hostnm01 SERVER 50000;
CATALOG DATABASE samp001 AS samp001 AT NODE node001;
TERMINATE;
When trying to connect to the SAMP001 database the following error was received: SQL30061N The database alias or database name name was not found at the remote node.
The database name is not an existing database at the remote database node. The statement cannot be processed. What should be done resolve the problem?
- A. Change the service name (SVCENAME) in the remote servers database configuration.
- B. Match the port number in the CATALOG TCPIP NODE command with the port number in the /etc/services file on the remote server.
- C. Add a Database Connection Services entry to the /etc/services file on the Windows client.
- D. Add an entry into the Database Connection Services directory on the Windows client.
Correct Answer: A 🗳️
Which two operators would indicate inter-partition parallelism in an Optimizer Plan? (Choose two.)
- A. LTQ
- B. DTQ
- C. BTQ
- D. HSJOIN
- E. IP
Correct Answer: B,C 🗳️
In order for HADR to start, which statement is true when setting the HADR_TIMEOUT database configuration value?
- A. If the HADR_TIMEOUT value is set to -1, connection timeouts will not occur.
- B. If the HADR_TIMEOUT value is different between the two servers, the lowest value is used.
- C. Changes to the HADR_TIMEOUT value will take effect immediately.
- D. The HADR_TIMEOUT value must be identical on both the primary and the standby server.
Correct Answer: D 🗳️
A database and a table space were created using the following commands:
Afterwards, two tables were created in table space TBSP1 and both tables were populated with 100,000 rows. If a DBA decides that database MYDB should use automatic storage, which command(s) are needed to convert the database?
- A. ALTER DATABASE mydb ADD STORAGE ON ?mnt/path_1? ?mnt/path_2?
- B. ALTER DATABASE mydb AUTOMATIC STORAGE YES ON ?mnt/path_1? ?mnt/path_2? ALTER TABLESPACE tbsp1 MANAGED BY AUTOMATIC STORAGE;
- C. ALTER DATABASE mydb ADD STORAGE ON ?mnt/path_1? ?mnt/path_2? ALTER TABLESPACE tbsp1 MANAGED BY AUTOMATIC STORAGE;
- D. ALTER DATABASE mydb AUTOMATIC STORAGE YES ON ?mnt/path_1? ?mnt/path_2?
Correct Answer: A 🗳️
A journaling application inserts data with continually increasing sequential keys while a clean up process randomly deletes erroneous rows. What can be done to maximize insert performance?
- A. Issue an ALTER TABLESPACE EXTEND statement.
- B. Issue an ALTER TABLE APPEND ON statement.
- C. Issue a db2set DB2MAXFSCRSEARCH=1024 command.
- D. Issue a db2set DB2SKIPDELETED=ON command.
Correct Answer: B 🗳️
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