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IBM Assessment: DB2 9.7 Advanced DBA for LUW Sample Questions:

1. Your UNIX system administrator has indicated that there appears to be a lot of I/O wait time associated with your database, which is stored in a 7+p RAID array. An investigation reveals the following information: DB2_PARALLEL_IO=*
Tablespace with ID 7 has a single container and is dedicated to the largest table. It has a page size of 16K, an extent size of 32, and a prefetch size of 64.
Which setting would optimize I/O for the largest table?

A) DB2_PARALLEL_IO=7:7
B) DB2_PARALLEL_IO=7:64
C) DB2_PARALLEL_IO=7:16
D) DB2_PARALLEL_IO=7:32

2. If your DB2 server is not responding (hung), and you cannot run DB2 commands from the Command Line Processor, which utility can be used to list the applications currently connected to the database MYDB?

A) db2acsutil
B) db2pd
C) db2dart
D) db2apptrk

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

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

4. Given the following table definition in a multi-partitioned database:

Which column(s) will be chosen by DB2 as a distribution key (partitioning key)?

A) EMP_ID
B) NAME
C) SS_ID
D) SS_ID, EMP_ID, and NAME

5. Which statement is true about clustering indexes in a partitioned database?

A) The clustering index column(s) should be suffixed by the partitioning key column(s).
B) The clustering index column(s) should be prefixed by the partitioning key column(s).
C) The partitioning key column(s) should be added to the clustering index with the INCLUDE option.
D) The partitioning key column(s) should be added immediately after the column in the clustering index with the highest cardinality.

Solutions: