IBM IBM Certifications C2090-320 Questions & Answers

• Question 111:

  In a unique referential constraint, which type of key does a foreign key reference?

  A. Child key

  B. Collation key

  C. Parent key

  D. Secondary key

  Correct Answer: C

  Reference: https://www.ibm.com/support/knowledgecenter/en/SSEPGG_11.1.0/ com.ibm.db2.luw.admin.dbobj.doc/doc/c0020166.html

• Question 112:

  Your current authorization ID is DBA. Only one of your secondary authorization IDs, DB2, has the privilege to create an index DB2.AAA on a table. The appropriate SQL statement starts with "CREATE INDEX AAA ON...". Which of the following statements must precede the CREATE statement so that you can create the index?

  A. SET CURRENT SQLID = `DB2';

  B. SET CURRENT RULES = `DB2';

  C. No preceding statement is needed

  D. SET CURRENT SCHEMA = `DB2';

  Correct Answer: A

• Question 113:

  Which of the following SQL constructs does NOT provide information about the success or failure of the SQL statement that was just executed?

  A. SQLCA

  B. SQLDA

  C. SQLCODE

  D. SQLSTATE

  Correct Answer: B

• Question 114:

  Which statement is TRUE regarding ROLLBACK processing?

  A. It only reads active logs

  B. It always needs archive logs

  C. It can never be processed just from memory

  D. It uses output buffers, active and archive logs

  Correct Answer: D

• Question 115:

  Which of the following elements is affected by a ROLLBACK statement?

  A. LOB table spaces

  B. Changes in cursor positioning

  C. Acquisition and release of locks

  D. Caching of rolled back statements

  Correct Answer: A

  Reference: https://www.ibm.com/support/knowledgecenter/en/SSEPEK_10.0.0/sqlref/src/tpc/ db2z_sql_rollback.html

• Question 116:

  The DB2 subsystem DSN has been correctly configured to access a remote DB2 location MYREMOTE. Which of the following processes can be used on subsystem DSN to access MYUSER.EMP table at MYREMOTE location?

  A. SELECT * FROM MYUSER.EMP;

  B. CONNECT TO MYREMOTE; SELECT * FROM MYUSER.EMP;

  C. SELECT * FROM MYUSER.MYREMOTE.EMP;

  D. CREATE ALIAS EMP_ALIAS FOR LOCATION.MYREMOTE.MYUSER.EMP; SELECT * FROM MYUSER.EMP_ALIAS;

  Correct Answer: B

• Question 117:

  Which of the following is NOT TRUE?

  A. An index can be created on XML columns

  B. Length must be specified for an XML column

  C. XML columns can be added to existing tables

  D. Triggers can be created on tables with XML columns

  Correct Answer: D

• Question 118:

  Given the following CREATE TABLE statement, and a unique index on column EMPID, which set of SQL statements is valid?

  

  A. B. C. D.

  Correct Answer: D

• Question 119:

  Which of the following locking scenarios requires the least amount of real storage in the IRLM address space?

  A. 10 row locks

  B. 200 page locks

  C. A single table space lock

  D. 6 partition locks (given a table space with a total of 10 partitions)

  Correct Answer: C

• Question 120:

  Which privilege will user smith be able to grant to another user on table emp when the following SQL is executed?

  GRANT ALL ON TABLE emp TO smith WITH GRANT OPTION;

  A. BIND

  B. REORG

  C. TRIGGER

  D. EXECUTE

  Correct Answer: D