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

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

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

2. A database and a table space were created using the following commands:

Afterwards, two tables were created in table space TBSP1 and both tables were populated with 100,000 rows. If a DBA decides that database MYDB should use automatic storage, which command(s) are needed to convert both the database and table space TBSP1?

A) ALTER DATABASE mydb AUTOMATIC STORAGE YES ON ?mnt/path_1? ?mnt/path_2? ALTER TABLESPACE tbsp1 MANAGED BY AUTOMATIC STORAGE;
B) ALTER DATABASE mydb ADD STORAGE ON ?mnt/path_1? ?mnt/path_2? ALTER TABLESPACE tbsp1 MANAGED BY AUTOMATIC STORAGE;
C) ALTER DATABASE mydb ADD STORAGE ON ?mnt/path_1? ?mnt/path_2?
D) ALTER DATABASE mydb AUTOMATIC STORAGE YES ON ?mnt/path_1? ?mnt/path_2?

3. The DBA needs to create a table with key columns YEARDAY, YEAR, and DAY. This table needs to be partitioned by column YEARDAY with three months per data partition. Additionally, data needs to be organized so that all rows within any three month date range are clustered together based on 12 months of data. Which CREATE TABLE statement will accomplish this objective?

A) CREATE TABLE tab1
(yearday INT,
year CHAR(2),
day INT))
PARTITION BY RANGE (yearday) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year))
B) CREATE TABLE tab1
(yearday INT,
year CHAR(2),
day INT))
PARTITION BY RANGE (yearday) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (day))
C) CREATE TABLE tab1
(yearday INT,
year CHAR(2),
day INT))
PARTITION BY RANGE (year) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year, day))
D) CREATE TABLE tab1
(yearday INT,
year CHAR(2),
day INT))
PARTITION BY RANGE (yearday) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year, day))

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

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

5. A primary and standby database are enabled for HADR and are in peer state. The HADR_SYNCMODE configuration parameter is set to SYNC. An application connects to the primary database, issues a COMMIT and receives a successful return code in response. How were the log buffers for this unit of work processed?

A) The log buffers were written to the DB2 log files on the standby server and held in memory on the primary server. The return code was then sent to the application.
B) The log buffers were written to the DB2 log files on the primary server and received in the log buffers on the standby database. The return code was then sent to the application.
C) The log buffers were written to the DB2 log files on the primary server, sent to the standby, and written to log files on the standby server. The return code was then sent to the application.
D) The log buffers were written to the DB2 log files on the primary server and sent to TCP/IP send buffer to be shipped to the standby server. The return code was then sent to the application.

Solutions: