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IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

1. A Windows user with a local database is not able to connect to a zOS database. The System Database Directory and the Node Directory have the correct entries. Other users can connect to the database from their workstations without problems. What should be done resolve the problem?

A) Catalog the zOS database in the Local Database Directory.
B) Uncatalog and re-catalog the directory entries for the zOS database and try again.
C) Catalog the zOS database in the Distributed Data Facility Directory.
D) Catalog the zOS database in the Database Connection Services Directory.

2. Click the Exhibit button.

Refer to the table definition shown in the exhibit.
Which will improve performance based on the query SELECT c6, c9 FROM tab3 WHERE c9 = 123456?

A) CREATE INDEX idx99 ON tab3 (c2 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
B) CREATE INDEX idx98 ON tab3 (c2 ASC, c6 ASC); CREATE INDEX idx99 ON tab3 (c2 ASC, c9 ASC); RUNSTATS ON TABLE myschema.tab3;
C) CREATE INDEX idx99 ON tab3 (c6 ASC, c9 DESC); REORG TABLE myschema.tab3 AND INDEXES ALL;
D) CREATE INDEX idx98 ON tab3 (c6 ASC); CREATE INDEX idx99 ON tab3 (c9 DESC); RUNSTATS ON TABLE myschema.tab3;

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 (year) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year, day))
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 (yearday) (STARTING 201001 ENDING 201012 EVERY 3)
ORGANIZE BY DIMENSIONS (year))
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. Which conditions must be met to implement HADR?

A) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).
B) Operating systems on primary and standby servers must be the same; DB2 versions need not be the same; and the databases must have the same bit-size (32 or 64 bit).
C) Operating systems on primary and standby servers must be the same; DB2 versions must be the same; and the databases must have the same bit-size (32 or 64 bit).
D) Operating systems on primary and standby servers need not be the same; DB2 versions must be the same; and the databases need not have the same bit-size (32 or 64 bit).

5. When the DBA chooses the dimensions for a multi-dimensional clustering (MDC) table, which two characteristics should be considered? (Choose two.)

A) prefetch size
B) the combined cardinality of the candidate columns
C) extent size
D) the query transaction rate
E) numeric data versus character data

Solutions: