Get Oracle Exam 1Z0-148 Dumps 2023 | Exam Actual Questions
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The updated 1Z0-148 dumps exam has 243 questions, all from the real exam, ensuring validity.
The following are some of the real questions shared by 1Z0-148 free dumps, welcome to learn.
Question 1:
Examine the following error:
SQL> DECLARE
v_runid NUMBER;
BEGIN
v_runid := DBMS_HPROF.ANALYZE (LOCATION => \’PROFILE_DATA\’,
FILENAME => \’pd_cc_pkg.txt\’);
DBMS_OUTPUT.PUT_LINE(\’Run ID: \’ || v_runid);
END;
DECLARE
*
ERROR at line 1:
ORA-00942: table or view does not exist
ORA-06512: at “SYS.DBMS_HPROF”, line 299
ORA-06512: at line 4
What would you do to execute the above block successfully?
A. Start the PL/SQL profiler before executing the block.
B. Run the tracetab.sql script located at ORACLE_HOME\RDBMS\ADMIN.
C. Run the dbmshptab.sql script located at ORACLE_HOME\RDBMS\ADMIN.
D. Grant READ and WRITE privileges to the current user on the PROFILE_DATA directory object.
Correct Answer: C
Question 2:
Identify the component of the PL/SQL hierarchical profiler that uploads the result of profiling into database tables.
A. the trace file component
B. the analyzer component
C. the shared library component
D. the data collection component
Correct Answer: B
Question 3:
Identify the two types of PL/SQL programs for which you consider setting the compilation method to native mode. (Choose two.)
A. PL/SQL programs that are still in the debugging phase of development
B. PL/SQL programs that have computation-intensive procedural operations
C. A PL/SQL program, which is called with the same parameters by multiple sessions
D. PL/SQL programs that spend most of their execution time in executing SQL statements
Correct Answer: BC
Question 4:
Examine the settings for a user session given below:
RESULT_CACHE_MODE= FORCE
What would be the implications of this setting on query execution? (Choose all that apply.)
A. All query results are stored in the result cache if possible.
B. Query results that are bigger than the available space in the result cache are not cached.
C. Query results are stored only when you explicitly use the /*+ result_cache */ hint in your query.
D. Query results are stored even when you explicitly use the /*+ no_result_cache */ hint in your query.
Correct Answer: AB
Question 5:
Which two statements are true about the usage of the DBMS_DESCRIBE.DESCRIBE_PROCEDURE procedure? (Choose two.)
A. You can describe remote objects.
B. You can describe anonymous PL/SQL blocks.
C. You can describe a stored procedure, stored function, packaged procedure, or packaged function.
D. You can obtain information about the position, name, and data type of the arguments of a procedure.
Correct Answer: CD
Question 6:
You created the SALES_ORDERS_CTX context to use the OE.SALES_ORDERS_PKG package.
View Exhibit1 and examine the package that is used with the context.
View Exhibit2 to examine the policy defined and the logon trigger.
A user receives the following error when he or she executes a query:
ERROR at line 2:
ORA-28112: failed to execute policy function
What could be the reason for the error?
A. The user has insufficient privileges on the DBMS_SESSION package.
B. The subprograms inside the package have not been created with the invoker\’s right.
C. The THE_PREDICATE function has an insufficient number of parameters in the package.
D. The policy is created by using SALES_ORDERS_PKG.THE_PREDICATE without a parameter.
Correct Answer: C
Question 7:
View Exhibit1 and examine the structure of the EMPLOYEES table.
View Exhibit2 and examine the code in the PL/SQL block.
The PL/SQL block fails to execute.
What could be the reason?
A. Nested tables cannot be returned by a function.
B. The NEWNAMES nested table has not been initialized.
C. The assignment operator cannot be used to transfer all the element values from GROUP1 to GROUP2.
D. The third element of OLDNAMES cannot be assigned to the third element of GROUP1 because they are of inconsistent data types.
E. LAST_NAME values cannot be assigned to the V_LAST_NAMES nested table because local collection types are not allowed in SQL statements.
Correct Answer: E
Question 8:
Examine the code in the following PL/SQL block:
DECLARE
TYPE NumList IS TABLE OF INTEGER;
List1 NumList := NumList(11,22,33,44);
BEGIN
List1.DELETE(2);
DBMS_OUTPUT.PUT_LINE
( \’The last element# in List1 is \’ || List1.LAST ||
\’ and total of elements is \’||List1.COUNT);
List1.EXTEND(4,3);
END;
/
Which two statements are true about the above code? (Choose two.)
A. LAST and COUNT give different values.
B. LAST and COUNT give the same values.
C. The four new elements that are added contain the value 33.
D. The four new elements that are added contain the value 44.
Correct Answer: AC
Question 9:
View the Exhibit and examine the structure of the EMPLOYEES table.
Examine the following PL/SQL block for storing the salary of all sales representatives from the
EMPLOYEES table in an associative array:
1 DECLARE
2 emp_cv SYS_REFCURSOR;
3 TYPE list IS TABLE OF emp_cv;
4 sals list;
5 BEGIN
6 OPEN emp_cv FOR SELECT salary FROM employees
7 WHERE job_id = \’SA_REP\’;
8 FETCH emp_cv BULK COLLECT INTO sals;
9 CLOSE emp_cv;
10 END;
What should you correct in the above code to ensure that it executes successfully?
A. Replace EMP_CV in line 3 with employees.salary%TYPE.
B. Replace line 2 with TYPE refcur IS REF CURSOR; emp_cv refcur;.
C. Replace BULK COLLECT in line 8 with the OPEN, FETCH, LOOP, and CLOSE statements.
D. Replace line 2 with TYPE refcur IS REF CURSOR RETURN employees.salary%TYPE; emp_cv refcur;.
Correct Answer: A
Question 10:
Which two statements are true about the query results stored in the query result cache? (Choose two.)
A. If any of the tables used to build a query is modified by an ongoing transaction in the current session, the query result is not cached.
B. A query result based on a read-consistent snapshot of data that is older than the latest committed version of the data is not cached.
C. Adding the RESULT_CACHE hint to inline views enables optimizations between the outer query and the inline view, and the query result is cached.
D. A query result for a query that has a bind variable is stored in the cache and is reused if the query is equivalent even when the bind variable has a different value.
Correct Answer: AB
Question 11:
Which two statements are true about the migration of BasicFile to the SecureFile format by using the DBMS_REDEFINITION package? (Choose two.)
A. It can be performed only on tables with a single LOB column.
B. It automatically creates an interim table during the migration process.
C. It allows the table that is migrated to be accessed throughout the migration process.
D. It requires free space that is at least equal to the space used by the table that is migrated.
E. It requires all constraints defined on the original table to be re-created manually after the migration.
Correct Answer: CD
Question 12:
Which statements are true about the SecureFile storage paradigm? (Choose two.)
A. SecureFile storage can be used for internal and external LOBs.
B. Automatic Segment Space Management must be enabled for a tablespace to store SecureFile LOBs.
C. SecureFile options enabled for a LOB column can be overridden on a per-LOB basis within the column.
D. SecureFile is the default storage paradigm for all LOBs that are stored in locally managed tablespaces if the DB_SECUREFILE parameter is set to ALWAYS.
Correct Answer: BC
Question 13:
Which statements are true about internal LOBs? (Choose all that apply.)
A. They cannot use redo logging.
B. They can be used as attributes of a user-defined data type.
C. They cannot be passed as parameters to PL/SQL subprograms.
D. They can be stored in a tablespace that is different from the tablespace that stores the table containing the LOB column.
Correct Answer: BD
Question 14:
Which two statements correctly describe the features of SecureFiles? (Choose two.)
A. Compression is performed only on the server side and enables random reads and writes to LOB data.
B. Deduplication stores identical data, which occurs in a LOB column in each row, as a single copy within the LOB.
C. Compression can be performed on the client side and it enables random and sequential reads and writes to LOB data.
D. Deduplication stores identical data occurring two or more times in the same LOB column as a single copy for the table.
Correct Answer: AD
Question 15:
You created a PL/SQL subprogram that successfully invokes an external C procedure. After a while, the database administrator (DBA) drops the alias library schema object. The shared library exists in the system. Which statement is true in this scenario?
A. The corresponding shared library is also removed from the system.
B. PL/SQL subprograms can be used to invoke the external C procedure.
C. The existing extproc process is terminated and a new extproc is started.
D. The PL/SQL subprogram that depends on the external C program becomes invalid.
Correct Answer: D