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IBM DB2 9.7 Database Administrator for Linux UNIX or Windows Upgrade Sample Questions:

1. Which statements about Explain administration authority (EXPLAIN) are true?

A) EXPLAIN authority allows a user to explain query plans by gaining limited access to data for a specific database. DBADM can grant this authority and this authority can be granted to PUBLIC.
B) EXPLAIN authority allows a user to explain query plans by gaining limited access to data for a specific database. SECADM can grant this authority and this authority cannot be granted to PUBLI
C) EXPLAIN authority allows a user to explain query plans without gaining access to data for a specific database. SECADM can grant this authority and this authority can be granted to PUBLIC.
D) EXPLAIN authority allows a user to explain query plans without gaining access to data for a specific database. SECADM and DBADM can grant this authority and this authority cannot be granted to PUBLIC.

2. Which of the following SQL statements will return monitoring information of all indexes in the DB2USER schema that have greater than 100 index scans?

A) SELECT * FROM TABLE(mon_get_index('DB2USER',' ',-2)) WHERE index_scans > 100
B) SELECT * FROM TABLE(mon_get_index(' ','DB2USER',-2)) WHERE index_scans > 100
C) SELECT * FROM TABLE(mon_get_index(' ',100,-2))
D) SELECT * FROM TABLE(mon_get_index('DB2USER',100,-2))

3. If table TAB_A is created as follows:

Assuming the cardinality of the columns is the same, which statement will create an index that will benefit the most from compression?

A) CREATE INDEX taba_idx ON tab_a (c2)
B) ALTER TABLE tab_a ADD PRIMARY KEY (c1)
C) CREATE INDEX taba_idx ON tab_a (c4)
D) CREATE UNIQUE INDEX taba_idx ON tab_a (c2)

4. If DB2 load operation is performed against a table which contains at least one XML column, which statement is true?

A) One compression dictionary is built for relational data, XML data is not compressed.
B) One compression dictionary is built for both relational data and for XML data.
C) One compression dictionary is built for relational data, one compression dictionary is built for XML data, and one compression dictionary is built for both relational and XML data.
D) One compression dictionary is built for relational data and one compression dictionary is built for the XML data.

5. A DBA sets the AUTO_DEL_REC_OBJ database configuration parameter to ON. When the PRUNE HISTORY command is executed with the AND DELETE option specified, what will occur?

A) Entries will be removed from the recovery history file; physical log files, backup images, and load copy images will be removed.
B) Entries will be removed from the recovery history file; physical log files, backup images, and load copy images will not be removed.
C) Entries will remain in the recovery history file; physical log files, backup images, and load copy images will be deleted.
D) Entries will remain in the recovery history file; backup images and load copy images will be deleted.

Solutions: