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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. A DBA migrating an existing database to DB2 9.7 wants to allow the primary and secondary recovery logs to be used with non-buffered IO. Which statement is true?

A) The DB2_LOGGER_AUTO_BUFFERED registry variable must be set to YES.
B) The DB2_LOGGER_BUFFERED registry variable must be set to OFF.
C) This behavior is automatically enabled by default.
D) The DB2_LOGGER_NON_BUFFERED_IO registry variable must be set to AUTO.

2. What would indicate intra-partition parallelism in an Optimizer Plan?

A) BTQ
B) IP
C) LTQ
D) DTQ

3. A database recovery operation (RECOVER DATABASE) failed during the roll forward phase. The DBA wants to force the RECOVER DATABASE to redo the restore phase. What must occur to accomplish this?

A) A RECOVER DATABASE command must be re-issued with the REPLACE option specified.
B) A RECOVER DATABASE command must be issued with the RESTART option specified.
C) A RECOVER DATABASE command must be issued with the TO END OF LOGS option specified.
D) The RECOVER DATABASE operation must be terminated and a new RECOVER DATABASE command must be issued.

4. If LOGSECOND=-1 then which of the following statements is true?

A) You must configure the OVERFLOWLOGPATH configuration parameter if your active log path is not on a raw device.
B) The database will reserve active log space for transactions that may need to roll back and write log records.
C) You still use LOGPRIMARY and LOGFILSIZ configuration parameters to specify how many log files the database manager should keep in the active log path.
D) An infinite number of overflow log files will be used with archival logging.

5. Table TAB1 was created using the following statement: CREATE TABLE tab1 (c1 INT, c2 INT, c3 INT, c4 INT, c5 INT); If column C1 is unique and queries typically access columns C1, C2, C3 and C4 together, which statement(s) will create index(es) that will provide optimal query performance?

A) CREATE UNIQUE INDEX xtab1 ON tab1 (c1); CREATE INDEX xtab2 ON tab1 (c2) INCLUDE (c3, c4);
B) CREATE UNIQUE INDEX xtab1 ON tab1 (c3) INCLUDE (c1, c2, c4);
C) CREATE UNIQUE INDEX xtab1 ON tab1 (c1) INCLUDE (c2, c3, c4);
D) CREATE UNIQUE INDEX xtab1 ON tab1 (c4, c3, c2, c1);

Solutions: