IBM IBM Certified Advanced Database Administrator A2090-610 Questions & Answers

• Question 11:

  What mechanism is typically used to automatically update other tables, generate or transform values for inserted or updated rows, and perform tasks such as issuing alerts?

  A. Trigger

  B. Procedure

  C. Table function

  D. Scalar function

  Correct Answer: A

• Question 12:

  Which data type should be used to store data in a column that represents money and accurately returns a two position scale?

  A. BIGINT

  B. BINARY

  C. DOUBLE

  D. DECIMAL

  Correct Answer: D

• Question 13:

  User USER1 wants to store part numbers and part descriptions in a table named PARTS; user USER1 also wants to ensure that any comparisons of part descriptions that are made will be done so in binary, regardless of the database collating sequence used. Which statement should user USER1 execute to create the desired table?

  A. CREATE TABLE parts(part_no INTEGER,desc CLOB))

  B. CREATE TABLE parts(part_no INTEGER,desc VARCHAR(200))

  C. CREATE TABLE parts(part_no INTEGER,desc CLOB FOR BIT DATA))

  D. CREATE TABLE parts(part_no INTEGER,desc VARCHAR(200) FOR BIT DATA)

  Correct Answer: D

• Question 14:

  What are INSTEAD OF triggers used for?

  A. To update data in other tables.

  B. To perform insert, update, and delete operations against complex views.

  C. To check or modify values before they are actually stored in a database.

  D. To run non-database operations that are coded in user-defined functions.

  Correct Answer: B

• Question 15:

  Which event will NOT cause a trigger to be fired?

  A. Execution of an INSERT statement.

  B. Execution of LOAD REPLACE operation.

  C. Execution of an INSERT operation of a MERGE statement.

  D. Execution of an UPDATE operation of a MERGE statement.

  Correct Answer: B

• Question 16:

  What is the primary purpose for using the INCLUDE clause with a CREATE UNIQUE INDEX statement?

  A. To override the limit on index key columns.

  B. To further enforce the uniqueness of index values.

  C. To combine two or more indexes to create a single unique index.

  D. To improve performance of some queries by allowing index-only access.

  Correct Answer: D

• Question 17:

  Which type of constraint can be used to tell the DB2 Optimizer that a parent-child relationship exists between two tables, but that the relationship is not enforced?

  A. Check

  B. Unique

  C. Referential

  D. Informational

  Correct Answer: D

• Question 18:

  Which database object provides an alternative way of describing data that exists in one or more base tables?

  A. Alias

  B. View

  C. Index

  D. Sequence

  Correct Answer: B

• Question 19:

  The WITH CHECK OPTION clause of the CREATE VIEW statement allows you to do which of the following?

  A. Define a view on one or more tables or views.

  B. Revalidate all invalid objects that are referenced on a view's fullselect.

  C. Ensure that any inserted or updated rows conform to the definition of the view.

  D. Define a view that only consists of columns that have check constraints defined.

  Correct Answer: C

• Question 20:

  Which statement regarding referential integrity constraints is true?

  A. Multiple primary keys can be defined for a table.

  B. A foreign key can reference multiple primary keys.

  C. A primary key can be referenced by only one foreign key.

  D. Primary keys and foreign keys are used to define relationships.

  Correct Answer: D