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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. At which two levels can events be audited? (Choose two.)

A) Operating System level
B) Database level
C) Instance level
D) Server level
E) Node level

2. A table named TAB_A was created with the COMPRESS YES option specified and populated with 100,000 rows. If a DBA wants to create an index on table TAB_A, which statement is true?

A) In order for the index to be compressed, it must be enabled for compression by specifying the COMPRESS YES option with the CREATE INDEX statement that is used to create it.
B) In order for the index to be compressed, it must be enabled for compression by specifying the COMPRESS YES option in the CREATE INDEX statement used to create it; however, the index will not be compressed until the ALTER INDEX command is used to create an index compression dictionary.
C) The index will automatically be compressed since the table it is associated with is compressed; the ALTER INDEX command does not have to be executed.
D) The index will automatically be enabled for compression because the associated table is compressed; however, the index will not be compressed until it is REORGed.

3. 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=7:32
B) DB2_PARALLEL_IO=7:7
C) DB2_PARALLEL_IO=7:16
D) DB2_PARALLEL_IO=7:64

4. What determines the degree of inter-partition parallelism used?

A) The number of database connections and the definition of partitions groups.
B) The number of database partitions and the definition of partition groups.
C) The value of the INTER_PARALLEL Database Manager configuration parameter.
D) The value of the DFT_DEGREE database configuration parameter.

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

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

Solutions: