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Hardening the Infrastructure (HTI)
1Z0-146
1.Which two types of metadata can be retrieved by using the various procedures in the
DBMS_METADATA PL/SQL package? (Choose two.)
A.report of invalidated objects in a schema
B.report of statistics of an object in the database
C.DDL for all object grants on a table in the database
D.data definition language (DDL) for all objects in a schema
Answer:C D
2.The database instance was recently started up. Examine the following parameter settings for the
database instance: NAME TYPE VALUE ------------------------------------ ----------- ---------------------------- .........
result_cache_max_result integer 5 result_cache_max_size big integer 0 result_cache_mode string
MANUAL result_cache_remote_expiration integer 0 ......... You reset the value for the
result_cache_max_size parameter by issuing the following command: SQL> ALTER SYSTEM SET
result_cache_max_size = 1056k SCOPE = BOTH; System altered. Which statement is true in this
scenario?
A.1056 KB is allocated for the result cache and the result cache is enabled.
B.1056 KB is allocated for the result cache, but the result cache is disabled.
C.The results for only the queries that have the RESULT_CACHE hint are cached.
D.The results for all the queries except those having the NO_RESULT_CACHE hint are cached.
Answer:B
3.In a user session, tracing is enabled as follows: SQL> EXECUTE
DBMS_TRACE.SET_PLSQL_TRACE(DBMS_TRACE.TRACE_ENABLED_LINES); PL/SQL procedure
successfully completed. You executed the procedure as follows: SQL> EXECUTE PROC10 PL/SQL
procedure successfully completed. When you examine the PLSQL_TRACE_EVENTS table, you find that
no trace information was written into it. View the Exhibit. What is the reason for this?
A.The PROC10 procedure is created with the invoker's right.
B.The PROC10 procedure is not compiled with the DEBUG option.
C.Tracing is not enabled with the TRACE_ENABLED_CALLS option.
D.The TRACE_ENABLED parameter is set to FALSE for the session.
Answer:B
4.Which two statements are true about SecureFile LOB options? (Choose two.)
A.The COMPRESSION HIGH option can be enabled only for CLOBs.
B.The COMPRESSION HIGH option can be enabled for all internal LOBs.
C.The DECRYPT option can be used to remove encryption only if the LOB column is empty.
D.The DECRYPT option can be used to remove encryption from LOB columns that are empty or contain
data.
Answer:B D
5.View the Exhibit and examine the structure of the EMPLOYEES table. Examine the following PL/SQL
block: DECLARE TYPE EmpList IS VARRAY(2) OF employees.employee_id%TYPE NOT NULL;
v_employees EmpList := EmpList(); BEGIN DBMS_OUTPUT.PUT_LINE(v_employees.COUNT);
v_employees.EXTEND; v_employees(1) := 30; END; / Which statement is true about the outcome on
executing the above PL/SQL block?
A.It executes successfully and displays the value 2.
B.It executes successfully and displays the value 0.
C.It generates an error because EXTEND cannot be used for varrays.
D.It generates an error because the declaration of the varray is not valid.
Answer:B
6.View the Exhibit and examine the procedure to create a trigger name based on the table name supplied
to the procedure. Which three statements are appropriate for protecting the code in the procedure from
SQL injection? (Choose three.)
A.Explicitly validate the identifier length limit.
B.Add AUTHID DEFINER to the definition of the procedure.
C.Use PRAGMA RESTRICT_REFERENCES in the procedure.
D.Filter out control characters in user-supplied identifier names.
E.Use the object ID of the table from the data dictionary to build the trigger name.Answer:A D E
7.Which statement describes the purpose of the plshprof command?
A.It produces HTML output from raw profiler output.
B.It produces HTML output from profiler tables in the database.
C.It populates profiler tables in the database from raw profiler output.
D.It produces raw profiler output on the most recently run applications.
Answer:A
8.Examine the structure of the DEPARTMENTS table. Name Null? Type ----------------------------- ------------
---------- DEPARTMENT_ID NOT NULL NUMBER(4) DEPARTMENT_NAME NOT NULL VARCHAR2(30)
LOCATION_ID NUMBER(4) View the Exhibit and examine the code that you plan to use for creating a
package to obtain the details of an employee using a host variable on the client side. In SQL*Plus, you
plan to use the following commands: SQL> VARIABLE x REFCURSOR SQL> EXECUTE
emp_data.get_emp(195,:x) SQL> PRINT x Which statement is true about the above scenario?
A.The package executes successfully and passes the required data to the host variable.
B.The package specification gives an error on compilation because cursor variable types cannot be
defined in the specification.
C.The package specification gives an error on compilation because the cursor variable parameter was
specified before you defined it.
D.The package executes successfully, but does not pass the required data to the host variable because
the cursor is closed before the PRINT statement runs.
Answer:D
9.Which two statements correctly describe the features of SecureFiles? (Choose two.)
A.Compression does not entail table or index compression and vice-versa.
B.Encryption stores the encryption keys for the LOB columns inside the database.
C.Encryption stores the encryption keys for the LOB columns outside the database.
D.Compression stores identical data occurring two or more times in the same LOB column as a single
copy for the table.
Answer:A C