IBM DB2 A2090-544

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

1. 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) 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 enabled for compression because the associated table is compressed; however, the index will not be compressed until it is REORGed.
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.

2. Which option of the ALTER TABLE statement tells the DB2 optimizer to use an index scan on a table that might vary in size at run time from being empty to containing a large number of rows?

A) CURRENT CARDINALITY
B) VOLATILE
C) INDEXSCAN
D) CARDINALITY VOLATILE

3. How can a DBA validate that an existing backup was compressed?

A) Check the value of the COMPRESS_BACKUP database configuration setting.
B) Check the output from the command LIST HISTORY BACKUP ALL FOR the database.
C) Check the value of the DB2_COMPRESS_BACKUP registry variable.
D) Check the header information of the backup file using db2ckbkp.

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

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

5. Which two operators would indicate inter-partition parallelism in an Optimizer Plan? (Choose two.)

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

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