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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

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

2. Table TAB1 was created using the following statement:
CREATE TABLE tab1 (c1 INT, c2 INT, c3 INT, c4 INT, c5 INT);
If column C1 is unique and queries typically access columns C1, C2 and C3 together, which statement(s) will create index(es) that will provide optimal query performance?

A) CREATE UNIQUE INDEX xtab1 ON tab1 (c2) INCLUDE (c1, c3);
B) CREATE UNIQUE INDEX xtab1 ON tab1 (c3, c2, c1);
C) CREATE UNIQUE INDEX xtab1 ON tab1 (c1) INCLUDE (c2, c3);
D) CREATE UNIQUE INDEX xtab1 ON tab1 (c1); CREATE INDEX xtab2 ON tab1 (c2) INCLUDE (c3);

3. The DBA needs to create a table with key columns YEARMONTH and YEAR. This table needs to be partitioned by column YEARMONTH with three months per data partition. Additionally, data needs to be organized by column YEAR, 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
(yearmonth INT,
year CHAR(2))
PARTITION BY RANGE (yearmonth) (STARTING 201001 ENDING 201012 EVERY 12)
ORGANIZE BY DIMENSIONS (year))
B) CREATE TABLE tab1
(yearmonth INT,
year CHAR(2))
PARTITION BY RANGE (year) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (yearmonth))
C) CREATE TABLE tab1
(yearmonth INT,
year CHAR(2))
PARTITION BY RANGE (yearmonth) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year))
D) CREATE TABLE tab1
(yearmonth INT,
year CHAR(2))
PARTITION BY RANGE (year) (STARTING 201001 ENDING 201012 EVERY 12)
ORGANIZE BY DIMENSIONS (yearmonth))

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

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

5. Which command CANNOT be used to explicitly build a compression dictionary for a table?

A) IMPORT
B) REORG
C) INSPECT
D) LOAD

Solutions: