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Section 14 1. A SELECT from the DEPTREE table displays table LOCATIONS at nested level 0 and procedure LOCPROC at nested level 2. This shows that LOCPROC is directly dependent on LOCATIONS. True or False? (1) Points True False (*) Correct 2. Examine the following code: CREATE FUNCTION deptfunc RETURN NUMBER IS v_count NUMBER(6); BEGIN SELECT COUNT(*) INTO v_count FROM departments; RETURN v_count; END;

Which of the following will display the dependency between DEPTFUNC and DEPARTMENTS? (1) Points SELECT name, type FROM user_dependencies WHERE name IN ('DEPTFUNC','DEPARTMENTS'); SELECT name, type, referenced_name, referenced_type FROM user_dependencies WHERE referenced_name = 'DEPARTMENTS' AND referenced_type = 'TABLE'; (*) SELECT name, type, referenced_name, referenced_type FROM user_dependencies WHERE name = 'DEPARTMENTS' AND type = 'TABLE'; SELECT object_name, object_type FROM user_objects WHERE object_name IN ('DEPARTMENTS','DEPTFUNC') AND referenced = 'YES'; Correct

3. Which of the following is NOT created when the utldtree.sql script is run? (1) Points The DEPTREE view The DEPTREE_FILL procedure The USER_DEPENDENCIES view (*) The DEPTREE_TEMPTAB table Correct 4. When a table is dropped, all PL/SQL subprograms that reference the table are automatically dropped. True or False? (1) Points True False (*) Correct 5. Which of the following will display dependency information which has been generated by executing the DEPTREE_FILL procedure? (Choose two.) (1) Points (Choose all correct answers) The USER_DEPENDENCIES view The DEPTREE view (*) The UTLDTREE script The DISPLAY_DEPTREE view The IDEPTREE view (*) Correct 6. Examine the following code: CREATE VIEW ed_view AS SELECT * FROM employees NATURAL JOIN departments; CREATE PROCEDURE ed_proc IS CURSOR ed_curs IS SELECT * FROM ed_view;

Which of the following statements about dependencies are true? (Choose two.) (1) Points (Choose all correct answers)

ED_PROC is indirectly dependent on DEPARTMENTS (*) EMPLOYEES is referenced by ED_VIEW (*) ED_CURS is directly dependent on ED_VIEW ED_PROC is referenced by ED_VIEW ED_PROC is directly dependent on EMPLOYEES Correct 7. A procedure includes the following code: CURSOR loc_curs IS SELECT location_id, city, country_id FROM locations;

Which of the following changes to the LOCATIONS table will allow the procedure to be recompiled successfully without editing its code? (Choose two.) (1) Points (Choose all correct answers) RENAME locations TO new_locations; ALTER TABLE locations ADD (climate VARCHAR2(30)); (*) ALTER TABLE locations DROP COLUMN city; ALTER TABLE locations DROP COLUMN postal_code; (*) Correct 8. Function FETCH_EMP references the EMPLOYEES table. The table is modified by: ALTER TABLE employees ADD (resume CLOB); When will the ORACLE server try to recompile FETCH_EMP automatically? (1) Points When the command ALTER FUNCTION fetch_emp COMPILE; is executed The next time a user session invokes FETCH_EMP (*) When the RESUME column is dropped from the EMPLOYEES table When FETCH_EMP is dropped and recreated Correct 9. When a subprogram is compiled/recompiled, a time stamp is automatically recorded in the local data dictionary. Switching the dependency mode to

SIGNATURE means that only the signature value is recorded. True or False? (1) Points True False (*) Correct 10. Procedure B has the ZERO_DIVIDE pre-defined exception added to its EXCEPTION section. It is compiled successfully. In Timestamp Mode, Procedure A, which is dependent on remote Procedure B, will compile and execute successfully. True or False? (1) Points True False (*) Incorrect. Refer to Section 14 Lesson 2.

Page 1 of 3 Test: Semester 2 Final Exam

Review your answers, feedback, and question scores below. An asterisk (*) indicates a correct answer.

Section 14 11. Procedure B has a new IN OUT parameter added to it. It compiles successfully. In Signature mode, Procedure A, which is dependent on remote Procedure B, will fail. True or False? (1) Points True (*) False Incorrect. Refer to Section 14 Lesson 2. 12. A change in a remote referenced subprogram is automatically recorded as invalid if its base object changes and that new status is relayed to the dependent object's status and automatically marked as invalid. True or False? (1) Points True False (*)

Incorrect. Refer to Section 14 Lesson 2. 13. In this scenario, the following status is given for each procedure:- Procedure A is local and has a time stamp of 10 AM- Procedure B is remote and has a local and remote time stamp of 10:30 AM

In Timestamp Mode, Procedure A, which is dependent on Procedure B, will execute successfully at 11 AM. True or False?

(1) Points True (*) False Incorrect. Refer to Section 14 Lesson 2. Section 15 14. Native machine code PL/SQL will always execute faster than bytecode PL/SQL because it need not be interpreted at run time. True or False? (1) Points True (*) False Correct 15. Native compilation always runs faster; therefore SQL statements in PL/SQL will always run faster, also. True or False? (1) Points True False (*) Incorrect. Refer to Section 15 Lesson 1. 16. To determine the current setting for PLSQL_OPTIMIZE_LEVEL, query the data dictionary view USER_PLSQL_OBJECTS_SETTING. True or False? (1) Points True False (*) Incorrect. Refer to Section 15 Lesson 1.

17. Conditional compilation allows you to determine what code will be compiled based on select criteria you specify using inquiry directives. True or False? (1) Points True False (*) Incorrect. Refer to Section 15 Lesson 3. 18. In the following example, what statement belongs in Line A?ALTER SESSION SET PLSQL_CCFLAGS = 'debug:true';

CREATE OR REPLACE PROCEDURE testproc IS BEGIN... $IF $$debug $THEN DBMS_OUTPUT.PUT_LINE('This code was executed'); -- Line A...END testproc;

ALTER SESSION SET PLSQL_CCFLAGS = 'debug:false'; (1) Points $ENDIF $$END; $END (*) $ELSIF $END; Incorrect. Refer to Section 15 Lesson 3. 19. To include selections of code for compilation based on user-defined values, use the PLSQL_CCFLAGS parameters. True or False? (1) Points True (*) False Incorrect. Refer to Section 15 Lesson 3. 20. Which term best describes the action below:A PL/SQL program compiles successfully, but contains some code that causes performance to be less than optimal. (1) Points

Error Warning (*) Correct

Page 2 of 3 Test: Semester 2 Final Exam

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Section 15 21. The two statements below are equivalent. True or False?DBMS_WARNING.SET_WARNING_SETTING_STRING ('ENABLE:SEVERE','SESSION');

and

ALTER SESSION SET PLSQL_WARNINGS = 'ENABLE:SEVERE';

(1) Points True False (*) Correct 22. The informational warning level of the PL/SQL compiler identifies poor coding practices, for example, code that can never be executed. True or False? (1) Points True (*) False Correct 23. When wrapping subprograms, the entire PL/SQL code must be included as an IN argument with data type CLOB to allow for any size program. True or False? (1) Points True False (*)

Incorrect. Refer to Section 15 Lesson 4. 24. You created a package named pkg1. The code is approximately 90,000 characters. What is the statement that you use to obfuscate this package in the database? (1) Points DBMS_DML.CREATE_WRAPPED (pkg1); WRAP pkg1.sql DBMS_DML.CREATE_WRAPPED ('CREATE OR REPLACE PACKAGE BODY pkg1...); WRAP INAME=pkg1.sql (*) DBMS_DML.CREATE_WRAP (pkg1); Incorrect. Refer to Section 15 Lesson 4. 25. Which is NOT a benefit of obfuscation? (1) Points Source code is not loaded in the data dictionary. Source code is hidden from all users. Source code is visible to the owner. (*) Protection for intellectual property is provided. Incorrect. Refer to Section 15 Lesson 4.

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Test: Semester 2 Final Exam

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Section 14 1. Procedure B has the ZERO_DIVIDE pre-defined exception added to its EXCEPTION section. It is compiled successfully. In Timestamp Mode, Procedure A, which is dependent on remote Procedure B, will compile and execute successfully. True or False? (1) Points True False (*)

Correct 2. Which command changes the dependency mode to SIGNATURE in the current session? (1) Points ALTER SESSION MAKE REMOTE_DEPENDENCIES_MODE = SIGNATURE ALTER SYSTEM MAKE REMOTE_DEPENDENCIES_MODE = SIGNATURE ALTER SESSION SET REMOTE_DEPENDENCIES_MODE = SIGNATURE (*) ALTER SYSTEM SET REMOTE_DEPENDENCIES_MODE = SIGNATURE Incorrect. Refer to Section 14 Lesson 2. 3. When a subprogram is compiled/recompiled, a time stamp is automatically recorded in the local data dictionary. Switching the dependency mode to SIGNATURE means that only the signature value is recorded. True or False? (1) Points True False (*) Correct 4. If two related objects are in different databases, the dependency between them is automatically recorded on the dependent object's data dictionary. True or False? (1) Points True False (*) Incorrect. Refer to Section 14 Lesson 2. 5. Procedure B has a new IN OUT parameter added to it. It compiles successfully. In Signature mode, Procedure A, which is dependent on remote Procedure B, will fail. True or False? (1) Points True (*) False Correct

6. Examine the following code: CREATE FUNCTION deptfunc RETURN NUMBER IS v_count NUMBER(6); BEGIN SELECT COUNT(*) INTO v_count FROM departments; RETURN v_count; END;

Which of the following will display the dependency between DEPTFUNC and DEPARTMENTS? (1) Points SELECT name, type FROM user_dependencies WHERE name IN ('DEPTFUNC','DEPARTMENTS'); SELECT name, type, referenced_name, referenced_type FROM user_dependencies WHERE referenced_name = 'DEPARTMENTS' AND referenced_type = 'TABLE'; (*) SELECT name, type, referenced_name, referenced_type FROM user_dependencies WHERE name = 'DEPARTMENTS' AND type = 'TABLE'; SELECT object_name, object_type FROM user_objects WHERE object_name IN ('DEPARTMENTS','DEPTFUNC') AND referenced = 'YES'; Correct 7. Package EMPPACK contains a public procedure GET_EMP, which contains a reference to the EMPLOYEES table. Procedure CALL_EMP invokes EMPPACK.GET_EMP. The following SQL statement is executed: ALTER TABLE employees ADD (gender CHAR(1));

Which one of the following statements is true? (1) Points The specification and body of EMPPACK are invalidated, but CALL_EMP remains valid. The body of EMPPACK is invalidated, but the specification remains valid. (*) EMPPACK.GET_EMP is invalidated, but other procedures in EMPPACK remain valid.

Nothing is invalidated because the PL/SQL code does not reference the GENDER column. Correct 8. Which of the following techniques will make it more likely that an invalidated PL/SQL subprogram will recompile successfully? (Choose two.) (1) Points (Choose all correct answers) Declaring record structures using %ROWTYPE (*) Using a cursor FOR loop instead of opening and closing the cursor explicitly SELECTing a list of column-names instead of using SELECT * Including a column list with INSERT statements (*) Correct 9. User BOB wants to know which objects reference his DEPARTMENTS table. Which of the following must he execute to populate the DEPTREE_TEMPTAB table? (1) Points BEGIN utldtree('DEPARTMENTS'); END; BEGIN deptree_fill('TABLE','BOB','DEPARTMENTS'); END;(*) BEGIN deptree_fill('TABLE','DEPARTMENTS'); END; BEGIN ideptree('TABLE','BOB','DEPARTMENTS'); END; Correct

10. Function FETCH_EMP references the EMPLOYEES table. The table is modified by: ALTER TABLE employees ADD (resume CLOB); When will the ORACLE server try to recompile FETCH_EMP automatically? (1) Points When the command ALTER FUNCTION fetch_emp COMPILE; is executed The next time a user session invokes FETCH_EMP (*) When the RESUME column is dropped from the EMPLOYEES table When FETCH_EMP is dropped and recreated Correct

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Test: Semester 2 Final Exam

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Section 14 11. Which of the following will display the number of invalid package bodies in your schema? (1) Points SELECT COUNT(*) FROM user_objects WHERE object_type = 'PACKAGE BODY' AND status = 'INVALID'; (*) SELECT COUNT(*) FROM user_dependencies WHERE type = 'PACKAGE BODY' AND status = 'INVALID'; SELECT COUNT(*) FROM user_packages WHERE status = 'INVALID'; SELECT COUNT(*) FROM user_objects WHERE object_type LIKE 'PACKAGE%' AND status = 'INVALID'; Correct

12. A SELECT from the DEPTREE table displays table LOCATIONS at nested level 0 and procedure LOCPROC at nested level 2. This shows that LOCPROC is directly dependent on LOCATIONS. True or False? (1) Points True False (*) Correct 13. The PL/SQL variable V_LAST_NAME is used to store fetched values of the LAST_NAME column of the EMPLOYEES table. To minimize dependency failures, the variable should be declared as:v_last_name VARCHAR2(25);

True or False? (1) Points True False (*) Correct Section 15 14. How would you determine the current Oracle database version? (1) Points DBMS_DB_VERSION.RELEASE DBMS_DB_VERSION.VERSION (*) DBMS_DB_VERSION.VER_LE_10 DBMS_DB_VERSION.VER_LE_11 Correct 15. To include selections of code for compilation based on user-defined values, use the PLSQL_CCFLAGS parameters. True or False? (1) Points True (*) False Correct

16. In the following example, what statement belongs in Line A?ALTER SESSION SET PLSQL_CCFLAGS = 'debug:true';

CREATE OR REPLACE PROCEDURE testproc IS BEGIN... $IF $$debug $THEN DBMS_OUTPUT.PUT_LINE('This code was executed'); -- Line A...END testproc;

ALTER SESSION SET PLSQL_CCFLAGS = 'debug:false'; (1) Points $ENDIF $$END; $END (*) $ELSIF $END; Correct 17. To determine the current setting for PLSQL_OPTIMIZE_LEVEL, query the data dictionary view USER_PLSQL_OBJECTS_SETTING. True or False? (1) Points True False (*) Correct 18. Identify examples of benefits of using PLSQL_OPTIMIZE_LEVEL. (Choose three) (1) Points (Choose all correct answers) Modify source code to optimize frequently-used elements at the top. Control what PL/SQL does with useless code. (*) Backward compatible with previous versions of the Oracle database. (*) Separating compiled code so that separate units may be repeated as needed. Copy compiled code from one subprogram into another subprogram. (*) Incorrect. Refer to Section 15 Lesson 1.

19. Native machine code PL/SQL will always execute faster than bytecode PL/SQL because it need not be interpreted at run time. True or False? (1) Points True (*) False Correct 20. Which term best describes the action below:A PL/SQL program compiles successfully, but contains some code that causes performance to be less than optimal. (1) Points Error Warning (*) Correct

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Test: Semester 2 Final Exam

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Section 15 21. What does the following statement do?DBMS_WARNING.ADD_WARNING_SETTING_CAT('PERFORMANCE','ENABLE','SESSION'); (1) Points Enables the PERFORMANCE warning category, setting other category settings to disabled. Enables the PERFORMANCE warning category, leaving other category settings unchanged. Add the PERFORMANCE warning category into a PL/SQL variable. Disables all warning categories, then enables the PERFORMANCE category. Enables the PERFORMANCE warning category, leaving other category settings unchanged, for the current session. (*)

Incorrect. Refer to Section 15 Lesson 2. 22. In the USER_ERRORS data dictionary view, if an error is prefixed with "Warning," the command completes but has a side effect the user needs to know about. For all other errors, the command terminates abnormally. True or False? (1) Points True (*) False Incorrect. Refer to Section 15 Lesson 2. 23. You created a package named pkg1. The code is approximately 90,000 characters. What is the statement that you use to obfuscate this package in the database? (1) Points DBMS_DML.CREATE_WRAPPED (pkg1); WRAP pkg1.sql DBMS_DML.CREATE_WRAPPED ('CREATE OR REPLACE PACKAGE BODY pkg1...); WRAP INAME=pkg1.sql (*) DBMS_DML.CREATE_WRAP (pkg1); Correct 24. Below are the steps to obfuscate a PL/SQL subprogram using the wrapper utility. What is the missing step?1. Create a text file containing your complete unwrapped source code.2. Execute WRAP to create a second text file containing the wrapped code.3. Connect to the database and execute the wrapped text file as a script to compile the wrapped code into the Data Dictionary. (1) Points Validate the wrapped code at the operating system level. Create the wrapper using DBMS_DML. Verify the code was hidden in USER_CODE. Grant EXECUTE privileges on the subprogram. Log into the database server computer. (*) Incorrect. Refer to Section 15 Lesson 4. 25. Which is NOT a benefit of obfuscation? (1) Points

Source code is not loaded in the data dictionary. Source code is hidden from all users. Source code is visible to the owner. (*) Protection for intellectual property is provided. Correct

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