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IBM C2090-544 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 |
| Backup and Recovery | - Log management and rollforward recovery - Online and offline backups - Point-in-time recovery |
| High Availability and Disaster Recovery | - Failover and recovery strategies - HADR configuration and monitoring |
| Security and Authorization | - Authentication and authorization models - Roles, privileges, and access control |
| Database Monitoring and Troubleshooting | - Locking issues and deadlock resolution - Event monitoring and snapshot analysis |
| 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:
1. Your UNIX system administrator has indicated that there appears to be a lot of I/O wait time associated with your database, which is stored in a 7+p RAID array. An investigation reveals the following information: DB2_PARALLEL_IO=*
Tablespace with ID 7 has a single container and is dedicated to the largest table. It has a page size of 16K, an extent size of 32, and a prefetch size of 64.
Which setting would optimize I/O for the largest table?
A) DB2_PARALLEL_IO=7:16
B) DB2_PARALLEL_IO=7:32
C) DB2_PARALLEL_IO=7:7
D) DB2_PARALLEL_IO=7:64
2. If the shared sort heap threshold parameter SHEAPTHRES_SHR is set to AUTOMATIC, what will happen?
A) All sorts will be done in a temporary table space.
B) All sorts will be done in shared memory.
C) No shared memory is allocated for sorting.
D) The shared sort memory allocation will be controlled by DB2.
3. Given a newly created database and sufficient memory. If the following statements are successful: CREATE BUFFERPOOL bp1 SIZE 40MB; CREATE BUFFERPOOL bp2 PAGESIZE 16K SIZE 40000; How much memory will be allocated for buffer pools BP1 and BP2?
A) 80MB
B) 665MB
C) 40MB
D) 680MB
4. A user with Security Administrator (SECADM) authority executes the following statements:
If user USER2 queries the table S.TAB1, how many rows will be returned?
A) 1
B) 2
C) 0
D) 3
5. What would indicate intra-partition parallelism in an Optimizer Plan?
A) DTQ
B) LTQ
C) IP
D) BTQ
Solutions:
| Question # 1 Answer: C | Question # 2 Answer: D | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: B |
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