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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. A database called PRODDB has a weekly full backup taken on Saturday, non-cumulative (delta) backups taken daily, and a midweek cumulative backup that is taken on Wednesday. A database crash occurs on a Saturday prior to the full backup being taken.
What is the fastest way to restore the database?

A) RESTORE DB proddb TAKEN AT (Saturday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Monday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Tuesday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Wednesday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Thursday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Friday);
B) RESTORE DB proddb TAKEN AT (Friday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Saturday);
C) RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Friday);
D) RESTORE DB proddb TAKEN AT (Saturday);
RESTORE DB proddb INCREMENTAL AUTOMATIC TAKEN AT (Friday);

2. A partitioned instance named DB2INST1 uses the following db2nodes.cfg file:
If the CREATE DATABASE command is executed on server C, which partition will be the catalog partition?

A) 1
B) 6
C) 0
D) 4

3. A DBA wants to migrate a DB2 LUW 8.2.2 database to version 9.7 and plans to use currently committed (CC) semantics on an application-by-application basis. Which process will yield the desired results?

A) Migrate the database, then assign the value ON to the CURR_COMMIT configuration parameter.
B) Set the DB2_USE_CC_SEMANTICS registry variable to APPLICATION, then migrate the database.
C) Set the DB2_USE_CC_SEMANTICS registry variable to YES, then migrate the database.
D) Migrate the database, then assign the value AVAILABLE to the CURR_COMMIT configuration parameter.

4. Which description is correct when discussing the DB2_MEM_TUNING_RANGE registry variable?

A) It is recommended to set this variable only when using STMM, when DATABASE_MEMORY is set to AUTOMATIC, and if insufficient system memory problems are occurring.
B) It is recommended to set this variable only when the Self-Tuning Memory Manager (STMM) is disabled.
C) It is recommended that this variable be enabled at all times in order to prevent DB2 from taking too much physical memory.
D) It is recommended that this variable be used to set the maximum percentage of memory that DB2 can use on the system.

5. 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 a db2set DB2MAXFSCRSEARCH=1024 command.
B) Issue an ALTER TABLE APPEND ON statement.
C) Issue an ALTER TABLESPACE EXTEND statement.
D) Issue a db2set DB2SKIPDELETED=ON command.

Solutions: