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IBM C2090-544 Exam Syllabus Topics:

IBM DB2 9.7 Advanced DBA for LUW Sample Questions:

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

2. Given INTRA_PARALLEL is OFF, average row length is 900 bytes, and temporary table cardinality is 1000, which setting would prevent a SORTHEAP overflow when the temporary table is sorted?

A) SORTHEAPTHRES 10000K, SORTHEAP 250K
B) SORTHEAP AUTOMATIC, SHEAPTHRES 10000K
C) SORTHEAP AUTOMATIC, SHEAPTHRES 0
D) SORTHEAPTHRES 10000K

3. Which type of table queue is used to pass data between database partitions when rows are being fetched?

A) listener table queue
B) synchronous table queue
C) asynchronous table queue
D) non-merging table queue

4. Given a newly created database and sufficient memory. If the following statements are successful: CREATE BUFFERPOOL bp1 SIZE 40MB; CREATE BUFFERPOOL bp2 PAGESIZE 16K SIZE 40000; How much memory will be allocated for buffer pools BP1 and BP2?

A) 40MB
B) 680MB
C) 665MB
D) 80MB

5. Which statement is correct about statistical views?

A) A statistical view provides the optimizer with additional correlation statistics.
B) A statistical view is created by executing runstats on a regular view.
C) A statistical view holds information about the system catalog statistical tables.
D) A statistical view provides the optimizer with more accurate cardinality estimates.

Solutions: