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IBM A2090-730 Exam Syllabus Topics:

IBM Assessment: DB2 9 Family Fundamentals Sample Questions:

Question 1

Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?

A. Application B will read the row.
B. Application B will wait until applicationA releases the Update lock.
C. Applications A and B will cause a deadlock situation.
D. Application A will be terminated so that application B can read the row.

Question 2

Which of the following is a characteristic of a schema?

A. If no schema is specified when an object is created, the default schema PUBLIC is used.
B. A schema enables the creation of multiple objects in a database without encountering namespace collisions.
C. A DB2 user must be created before a schema with the same name can be created.
D. Foreign key references cannot cross schema boundaries.

Question 3

Given the following scenario:
Table TABLE1 needs to hold specific numeric values up to 9999999.999 in column COL1. Once TABLE1 is populated, arithmetic operations will be performed on data stored in column COL1.
Which of the following would be the most appropriate DB2 data type to use for column COL1?

A. INTEGER
B. NUMERIC(7, 3)
C. DECIMAL(10, 3)
D. REAL

Question 4

When defining a referential constraint between the parent table T2 and the dependent table T1, which of the following is true?

A. The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.
B. The list of column names in the FOREIGN KEY clause can be a subset of the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.
C. The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T2 or a UNIQUE constraint that exists on T2.
D. The list of column names in the FOREIGN KEY clause must be identical to the list of column names in the primary key of T1 or a UNIQUE constraint that exists on T1.

Question 5

What does the following statement do? GRANT REFERENCES (col1, col2) ON TABLE table1 TO user1 WITH GRANT OPTION

A. Gives user USER1 the ability to refer to COL1 and COL2 of table TABLE1 in views, along with the ability to give this authority to other users and groups.
B. Gives user USER1 the ability to refer to COL1 and COL2 of table TABLE1 in queries, along with the ability to give this authority to other users and groups.
C. Gives user USER1 the ability to define a referential constraint on table TABLE1 using columns COL1 and COL2 as the foreign key of the constraint.
D. Gives user USER1 the ability to define a referential constraint on table TABLE1 using columns COL1 and COL2 as the parent key of the constraint.

Solutions: