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IBM Assessment: DB2 9.7 DBA for Linux UNIX and Windows Sample Questions:

1. Click the Exhibit button

Refer to the logging configuration parameters shown in the exhibit.
If there are currently 100 active log files and there is an error with archiving log file 1. What will happen when DB2 attempts to create log file 101?

A) DB2 will attempt to archive log file 1 to the regular archive location up to five times. If log archival still fails after the fifth attempt, the application will receive a "log full" error and at least one transaction will be rolled back.
B) DB2 will continue normal processing. It will create log file 101 while attempting to archive log file 1 up to five times. If the fifth attempt to archive log file 1 to the regular archive location fails, it will be placed in the FAILARCHPATH location until the regular archive location becomes available.
C) The transaction that prompts DB2 to try and create log file 101 receives a "log full" error and is rolled back because the active log space is full. Since the physical log path is not full, the BLK_LOG_DSK_FUL parameter does not take effect, so the database does not appear hung.
D) The database will appear hung because the active log space will be full and BLK_LOG_DSK_FUL is set to YES. Once log file 1 is archived, DB2 will begin normal processing.

2. A database named PAYROLL was backed up on Sunday. On Tuesday, a table space in the PAYROLL database was renamed from TBSP1 to EMPINFO_TBSP. On Thursday, the database was restored from the backup image created on Sunday. Which command must be issued to roll the renamed table space forward to the current date and time?

A) ROLLFORWARD DATABASE payroll TO END OF LOGS AND STOPTABLESPACE(tbsp 1 TO empinfo_tbsp)
B) ROLLFORWARD DATABASE payroll TO END OF LOGS AND STOPTABLESPACE(tbspl)
C) ROLLFORWARD DATABASE payroll TO END OF LOGS AND STOPTABLESPACE(empinfo_tbsp)
D) ROLLFORWARD DATABASE payroll TO END OF LOGS AND STOPTABLESPACE(tbsp 1 RENAME empinfo_tbsp)

3. What are two purposes of the db2mtrk command? (Choose two.)

A) to view memory usage for all process currently on the system
B) to view available memory on the system
C) to view application memory usage
D) to view the amount of database memory allocated to the buffer pools

4. If a non-recoverable database crashes, how can a DBA successfully restart the database if a table space is damaged and cannot complete crash recovery?

A) The damaged table space must be restored from the latest backup image. Once restored from the backup image, the RESTART DATABASE command can be issued to apply all the relevant transactions from the active logs. At that point, the database will come on-line and all table spaces will be synchronized.
B) The database must be restarted using the RESTART DATABASE command with the DROP PENDING TABLESPACES option specified. At that point, the database can be brought on-line and the damaged table space must be dropped and re-created.
C) The damaged table space must be restored from the latest backup and any active transaction logs in the log path can then be applied to it using the TABLESPACE ONLINE option of the ROLLFORWARD DATABASE command. This will bring the table space on-line and synchronize it with the rest of the database.
D) The damaged table space will require that the entire database be restored from the latest backup image because the database is non-recoverable and will not be accessible.

5. A file named db2advise.in contains the text shown below:
--#SET FREQUENCY 100
SELECT COUNTO FROM employee;
SELECT * FROM employee WHERE lastname='HAAS';
What does the line -#SET FREQUENCY 100 convey when this file is used as input for the Design
Advisor?

A) Executes an index analysis for the first SQL statement in the workload file 100 times.
B) Executes up to 100 combinations of optimizations for both SQL statements in the workload file
C) Executes both SQL statements in the workload file 100 times.
D) Executes the first SOL statement in the workload file 100 times.

Solutions: