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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. Which command will prevent prefetching during crash recovery?

A) db2set DB2_RECOVERY_PREFETCHING=YES
B) db2set DB2_AVOID_PREFETCH=OFF
C) db2set DB2_RECOVERY_PREFETCHING=NO
D) db2set DB2_AVOID_PREFETCH=ON

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) The shared sort memory allocation will be controlled by DB2.
D) No shared memory is allocated for sorting.

3. Which conditions must be met to implement HADR?

A) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases must have the same bit-size (32 or 64 bit).
B) Operating systems on primary and standby servers need not be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).
C) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).
D) Operating systems on primary and standby servers must be the same; DB2 versions need not be the same; and the databases must have the same bit-size (32 or 64 bit).

4. Which factor should influence your selection of distribution key(s)?

A) The distribution key(s) should include the most frequently accessed XML column(s).
B) The distribution key(s) should include the longest column(s).
C) The distribution key(s) should include the most frequently joined column(s).
D) The distribution key(s) should include column(s) with the smallest number of distinct values.

5. When an agent that is connected to the database finishes its work of successfully processing a query, what happens to the agent?

A) It automatically releases the database connection and returns to the pool.
B) It remains active as long as the MAXAGENTS setting is not exceeded.
C) It terminates immediately.
D) It is placed in the agent pool if the connection is terminated.

Solutions: