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IBM DB2 10.1 Advanced DBA for Linux UNIX and Windows Sample Questions:

1. A table named SALES was created as follows:

Assuming all table spaces required already exist, which statement(s) must be executed to add a new partition that already contains data for the first quarter of 2013 to the SALES table and leave the table accessible?

A) ALTER TABLE sales ADD PARTITION part_2013q1
STARTING ('01/01/2013') ENDING ('03/31/2013') IN ts5;
B) ALTER TABLE sales ATTACH PARTITION part_2013q1
STARTING ('01/01/2013') ENDING ('03/31/2013')
FROM TABLE q12013_sales;
C) ALTER TABLE sales ADD PARTITION part_2013q1
STARTING ('01/01/2013') ENDING ('03/31/2013') IN ts5;
SET INTEGRITY FOR sales IMMEDIATE CHECKED;
D) ALTER TABLE sales ATTACH PARTITION part_2013q1
STARTING ('01/01/2013') ENDING ('03/31/2013')
FROM TABLE q12013_sales;
SET INTEGRITY FOR sales IMMEDIATE CHECKED;

2. Which statement about value compression is correct?

A) Value compression involves removing duplicate entries for a value, only storing one copy, and keeping track of the location of any references to the stored copy.
B) Value compression uses a page-level dictionary-based compression algorithm to compress data based on repetition of values found in a single column.
C) To use value compression, you must have a license for the DB2 Storage Optimization Feature.
D) When value compression is used, the byte count of compressed NULLs, zeros, and blanks might be larger than that of the uncompressed version of the same values.

3. Which statement about dropped table recovery is correct?

A) By default, the DROPPED TABLE RECOVERY option is off when a new table space is created.
B) For a dropped table to be recoverable, the table space in which the table resides must have the DROPPED TABLE RECOVERY option turned on.
C) Multiple dropped tables can be recovered with a single table space-level restore operation.
D) The dropped table recovery feature lets you recover only dropped table data with a database-level restore operation.

4. If a large amount of sequential prefetching is occurring, what can be done to improve efficiency?

A) Set SEQDETECT to NO.
B) Set NUMBLOCKPAGES to 0 in all buffer pools.
C) Create indexes that encourage the optimizer to use index-only access.
D) Allocate a block-based area in the appropriate buffer pool.

5. Which command(s) should be used to drop database partition 10 from a database named MYDB?

A) CONNECT TO mydb; DROP DBPARTITIONNUM 10; ACTIVATE DB mydb;
B) STOP DBM DROP DBPARTITIONNUM 10; DROP DBPARTITIONNUM VERIFY;
C) DROP DBPARTITIONNUM VERIFY; STOP DBM DROP DBPARTITIONNUM 10;
D) CONNECT TO mydb; DROP DBPARTITIONNUM 10; CONNECT RESET;

Solutions: