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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. In which two environments would intra-partition parallelism be used? (Choose two.)

A) Multiple database partitions, multiple processor cores
B) Single database partition, multiple processor cores
C) Single database partition, single processor core
D) Multiple database partitions, single processor core

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) 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.
B) 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.
C) 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.
D) 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.

3. What is a method for enabling non-buffered I/O at the table space level in a DB2 database?

A) Use the USE DIRECT IO clause with the CREATE TABLESPACE or ALTER TABLESPACE command.
B) Use the NO FILE SYSTEM CACHING clause with the CREATE TABLESPACE or ALTER TABLESPACE command.
C) Set the DB2_DIRECT_IO configuration parameter to YES.
D) Set the DB2_FILESYSTEM_CACHE configuration parameter to YES.

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

5. Given a database created as follows:

If each table (T1 and T2) has 50,000 rows, which of the following commands will ensure that the temporary table created by the select statement will fit entirely in the buffer pool, assuming that there is a primary key/foreign key relationship between column C1 in table T1, and column C1 in table T2?

A) CREATE BUFFERPOOL bp1 size 5000 PAGESIZE 16k; ALTER TABLESPACE tempspace1 BUFFERPOOL bp1;
B) CREATE BUFFERPOOL bp1 size 25000 PAGESIZE 32k;
C) CREATE BUFFERPOOL bp1 size 10000 PAGESIZE 8k;
D) CREATE BUFFERPOOL bp1 SIZE 20000 PAGESIZE 4k; ALTER TABLESPACE tempspace1 BUFFERPOOL bp1;

Solutions: