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

• Question 91:

  Which SQL statement will give user USER1 the ability to assign a comment to a sequence named MYSEQ?

  A. GRANT ALTER ON SEQUENCE myseq TO user1

  B. GRANT USAGE ON SEQUENCE myseq TO user1

  C. GRANT SELECT ON SEQUENCE myseq TO user1

  D. GRANT COMMENT ON SEQUENCE myseq TO user1

  Correct Answer: A

• Question 92:

  A column mask that is to be used for row and column access control (RCAC) was created with the DISABLE option specified. What must be done if this mask is to be used to restrict access to data stored in a table named EMPLOYEE?

  A. The column mask must be enabled; the EMPLOYEE table must be altered to activate column access control.

  B. The column mask must be enabled (column access control for the EMPLOYEE table will be activated automatically).

  C. The EMPLOYEE table must be altered to activate column access control (the column mask will be enabled automatically).

  D. The EMPLOYEE table must be altered to activate column access control; row permission must be granted to everyone who needs to use thecolumn mask.

  Correct Answer: A

• Question 93:

  If a user has been granted SYSCTRL authority, which activities can they perform?

  A. Load operations

  B. Backup/copy table spaces

  C. Create and drop databases

  D. Monitor database performance

  Correct Answer: C

• Question 94:

  What is the purpose of a role?

  A. To define exactly what a specific user can do within a particular database once they have been authenticated.

  B. To group a collection of privileges together so that they can be simultaneously granted to and revoked from multiple users.

  C. To establish a credible relationship between DB2 and an external entity, such as a database administrator or a middleware server.

  D. To group a collection of users together so that they can be simultaneously granted and revoked specific authorities and privileges.

  Correct Answer: B

• Question 95:

  In a trusted context environment, if a switch request is made with an authorization ID that is not allowed on a trusted connection, what state is the connection placed in?

  A. Locked

  B. Waiting

  C. Pending

  D. Unconnected

  Correct Answer: D

• Question 96:

  Which SQL statement should be used to select the minimum and maximum salaries (SALARY), by job code (JOB), from a table EMPLOYEE?

  A. SELECT job, MIN(salary), MAX(salary)FROM employeeGROUP BY job;

  B. SELECT job, MIN(salary), MAX(salary)FROM employeeORDER BY job;

  C. SELECT job, MIN(salary), MAX(salary)FROM employeeGROUP BY job, MIN(salary), MAX(salary);

  D. SELECT JOB, MIN(salary), MAX(salary)FROM employeeORDER BY job, MIN(salary), MAX(salary);

  Correct Answer: A

• Question 97:

  Which statement about application-period temporal tables is true?

  A. Consists of explicitly-supplied timestamps and a separate associated history table.

  B. Is based on explicitly-supplied timestamps that define the time periods during which data is valid.

  C. Is useful when one wants to keep both user-based period information and system-based historical information.

  D. Consists of a pair of columns with database-manager maintained values that indicate the period when a row is current.

  Correct Answer: B

• Question 98:

  Which statement about INSERT operations is true?

  A. The INSERT statement is used to insert rows into a table, view, or table function.

  B. Inserted values must satisfy the conditions of any check constraints defined on the table.

  C. If an INSERT statement omits any column from the inserted row that is defined as NULL or NOT NULL WITH DEFAULT, the statement will fail.

  D. If the underlying table of a view being referenced by an INSERT statement has one or more unique indexes, each row inserted does not haveto conform to the constraints imposed by those indexes.

  Correct Answer: B

• Question 99:

  If the following result set is desired:

  

  Which SQL statement must be executed?

  A. SELECT lastname, firstnme, salary, jobFROM employeeORDER BY 3FETCH FIRST 5 ROWS ONLY

  B. SELECT lastname, firstnme, salary, jobFROM employeeORDER BY 3 DESCFETCH FIRST 5 ROWS ONLY

  C. SELECT lastname, firstnme, salary, jobFROM employeeORDER BY 3FETCH FIRST 5 ROWS

  D. SELECT lastname, firstnme, salary, jobFROM employeeORDER BY 3 DESCFETCH FIRST 5 ROWS

  Correct Answer: B

• Question 100:

  Which SQL statement will retrieve the employee number (EMPNO), hire date (HIREDATE), and salary (SALARY) for each employee from a table named EMPLOYEE who was hired before 1998 and earns a salary of less than $35,000.00 per year?

  A. SELECT empno, hiredate, salaryFROM employeeFOR hiredate < '1998-01-01' AND salary < 35000

  B. SELECT empno, hiredate, salaryFROM employeeWHERE hiredate < '1998-01-01' AND salary < 35000

  C. SELECT empno, hiredate, salaryFROM employeeWHERE hiredate < '1998-01-01' OR salary < 35000

  D. SELECT empno, hiredate, salaryFROM employeeFOR hiredate < '1998-01-01' OR salary < 35000

  Correct Answer: B