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Q21. Which two guidelines should be considered when designing and using cursors in a PL/SQL block? (Choose two.)
A. When fetching from a cursor, fetch into a record.
B. When fetching from a cursor, fetch required values into individually declared variables.
C. Whenever possible, explicitly declare the cursor and use the OPEN, FETCH, and CLOSE statements to manipulate the cursor instead of using the cursor FOR loop.
D. Whenever possible, use the cursor FOR loop instead of explicitly declaring the cursor and using the OPEN, FETCH, and CLOSE statements to manipulate the cursor.
Answer: A,D
Q22. Which two statements are true about associative arrays and nested tables? (Choose two.)
A. Only associative arrays can hold an arbitrary number of elements.
B. Only nested tables can be used as column types in database tables.
C. Both associative arrays and nested tables can hold an arbitrary number of elements.
D. Both associative arrays and nested tables can be used as column types in database tables.
Answer: B,C
Q23. View the Exhibit and examine the output.
Which statement is an inference from the output?
A. The class file is pinned into the Java pool.
B. The class file has been loaded into the shared library.
C. Java class methods in the Java class file have been published.
D. The loadjava command has been executed to load the Java source and class files.
Answer: D
Q24. Identify two strategies against SQL injection. (Choose two.)
A. Using parameterized queries with bind arguments.
B. Use subprograms that are run with the definer's right.
C. Use RESTRICT_REFERENCE clauses in functions that use dynamic SQLs.
D. Validate user inputs to functions that use dynamic SQLs built with concatenated values.
Answer: A,D
Q25. The PLSQL_OPTIMIZE_LEVEL parameter is set to 2 for the session.
Examine the section of code given:
FUNCTION p2 (p boolean) return PLS_INTEGER IS ...
FUNCTION p2 (x PLS_INTEGER) return PLS_INTEGER IS
PRAGMA INLINE(p2, 'YES');
x := p2(true) + p2(3);
Which statement is true about the INLINE pragma procedure calls?
A. Only the call to the P2 function with BOOLEAN as the argument is inlined.
B. INLINE pragma affects both the functions named P2 and is called inline.
C. Only the call to the P2 function with PLS_INTEGER as the argument is inlined.
D. None of the functions are inlined because inlining is not supported for overloaded functions.
Answer: B
Q26. Identify two strategies against SQL injection. (Choose two.)
A. Using parameterized queries with bind arguments.
B. Use subprograms that are run with the definer's right.
C. Use RESTRICT_REFERENCE clauses in functions that use dynamic SQLs.
D. Validate user inputs to functions that use dynamic SQLs built with concatenated values.
Answer: A,D
Q27. You created an application context successfully. The user OE was granted the EXECUTE privilege on the DBMS_SESSION package. The user receives this error while setting the value for an attribute within the context: SQL> EXECUTE DBMS_SESSION.SET_CONTEXT('SALES_ORDERS_CTX','ACCOUNT_MGR','OE'); BEGIN DBMS_SESSION.SET_CONTEXT('SALES_ORDERS_CTX','ACCOUNT_MGR','OE'); END; * ERROR at line 1: ORA-01031: insufficient privileges ORA-06512: at "SYS.DBMS_SESSION", line 94
ORA-06512: at line 1
What is the reason for this error?
A. The context was created with a package name in the USING clause.
B. The attribute can be set only in the package associated with the context.
C. The package associated with the context did not exist at the time of creation of the context.
D. The value for an attribute of a user-defined context can be set only by the ALTER SESSION command.
Answer: B
Q28. View the Exhibit and examine the PL/SQL code.
Which statement is true about the execution of the PL/SQL code?
A. It executes successfully and displays 101 and 200000 values.
B. The ASSIGN_VAL function generates an error during compilation because nested tables cannot be returned by functions.
C. The SELECT statement generates an error because the nested table has not been initialized in the ASSIGN_VAL function.
D. The ASSIGN_VAL function generates an error during compilation because the EXTEND method cannot be used with nested tables.
Answer: C
Q29. Which three actions can be performed by using the DBMS_ASSERT package to prevent SQL injection? (Choose three.)
A. Detect a wrong user.
B. Check input string length.
C. Verify qualified SQL names. D. Validate TNS connect strings.
E. Verify an existing schema name.
F. Enclose string literals within double quotation marks.
Answer: C,E,F
Q30. Examine the following settings for a session:
PLSQL_CODE_TYPE = NATIVE
PLSQL_OPTIMIZE_LEVEL = 3
Which statement would be true in this scenario?
A. The compiler would automatically inline subprograms.
B. The compiler would inline the code for external subroutines.
C. The compiler would inline the code even if the INLINE pragma is set to NO.
D. The compiler would not inline the code unless the INLINE pragma is set to YES.
Answer: A
