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IBM C2090-614 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Backup, Recovery, and High Availability | - Backup and restore operations - High Availability Disaster Recovery (HADR) - Rollforward recovery |
| Advanced Database Administration | - Diagnostic and troubleshooting techniques - Security and authorization - Utilities and maintenance |
| Performance Monitoring and Tuning | - Index and memory tuning - Performance monitoring tools - SQL and query optimization |
| Database Design and Physical Implementation | - Database architecture and design - Table spaces, buffer pools, and storage management - Partitioning strategies |
IBM DB2 10.1 Advanced DBA for Linux UNIX and Windows Sample Questions:
A query against the system catalog revealed that data for a table named SALES in a partitioned database is distributed as follows:
What can be done to improve the performance of a query that joins SALES and DATE_DIM tables (where SALES is a fact table and DATE_DIM is a dimension table) using the DATE_ID column?
- A. Reload table DATE_DIM and use only one partition with a collocated join to the SALES table using the primary key DATE_ID.
- B. Create a replicated table REPL_SALES from the SALES table, refresh REPL_SALES table, create index on DATE_ID column in theREPL_SALES table, and collect statistics on REPL_SALES table.
- C. Create a replicated table REPL_DATE_DIM from the DATE_DIM table, refresh REPL_DATE_DIM table, create index on DATE_ID column in theREPL_DATE_DIM table, and collect statistics on REPL_DATE_DIM table.
- D. Reload table SALES and use only one partition with a collocated join to the DATE_DIM table using the primary key DATE_ID.
Correct Answer: C 🗳️
The following statement was used to create a table space named TBSP1 in a non-partitioned database:
Which statement(s) will successfully lower the high water mark in table space TBSP1 and return unused storage space to the operating system?
- A. ALTER TABLESPACE tbsp1 LOWER HIGH WATER MARK
- B. ALTER TABLESPACE tbsp1 REDUCE (ALL CONTAINERS 8); ALTER TABLESPACE tbsp1 LOWER HIGH WATER MARK;
- C. ALTER TABLESPACE tbsp1 REDUCE MAX
- D. ALTER TABLESPACE tbsp1 LOWER HIGH WATER MARK; ALTER TABLESPACE tbsp1 REDUCE (ALL CONTAINERS 8);
Correct Answer: D 🗳️
A storage group named HOT_SG was created as follows:
What does the DATA TAG 1 clause do?
- A. It indicates that the value 1 is to be assigned to data stored in the HOT_SG storage group, which Workload Manager (WLM) can then use to determine the processing priority to assign to database activities that interact with this data.
- B. It assigns a unique identifier to the instance of the HOT_SG storage group being defined; this identifier can then be used when moving table spaces to and from the storage group, when dropping the storage group, or when commenting on the storage group.
- C. It indicates that the multiple storage paths referenced in the HOT_SG storage group definition exist in one physical location.
- D. It tells the DB2 Optimizer that database objects stored in the HOT_SG storage group are to be given preference over other objects when data access plans are generated.
Correct Answer: A 🗳️
Which Workload Manager (WLM) objects can the COLLECT ACTIVITY DATA clause be used with?
- A. Service subclass, work class, and a threshold
- B. Data class, action class, and a threshold
- C. Data class, work class, and a limit
- D. Service subclass, action class, and a limit
Correct Answer: A 🗳️
What type of file system is used to store data and logs in a DB2 pureScale environment?
- A. Enhanced Journaled File System (JFS2 or EXT4)
- B. Network File System (NFS)
- C. General Parallel File System (GPFS)
- D. Common Internet File System (CIFS)
Correct Answer: C 🗳️
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