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Latest 1z0-062 exam practice questions 1-5

QUESTION 1
Which three tasks can be automatically performed by the Automatic Data Optimization feature of Information lifecycle
Management (ILM)? (Choose three.)
A. Tracking the most recent read time for a table segment in a user tablespace
B. Tracking the most recent write time for a table segment in a user tablespace
C. Tracking insert time by row for table rows
D. Tracking the most recent write time for a table block
E. Tracking the most recent read time for a table segment in the SYSAUX tablespace
F. Tracking the most recent write time for a table segment in the SYSAUX tablespace
Correct Answer: ABD
Incorrect:
Not E, Not F When Heat Map is enabled, all accesses are tracked by the in-memory activity tracking module. Objects in
the SYSTEM and SYSAUX tablespaces are not tracked.
*
To implement your ILM strategy, you can use Heat Map in Oracle Database to track data access and modification. Heat
Map provides data access tracking at the segment-level and data modification tracking at the segment and row level.
*
To implement your ILM strategy, you can use Heat Map in Oracle Database to track data access and modification. You
can also use Automatic Data Optimization (ADO) to automate the compression and movement of data between different
tiers of storage within the database.

QUESTION 2
The user SCOTT owns the CUST table that is placed in the SALES tablespace. The user SCOTT opens a session and
executes commands as follows:
SQL> INSERT INTO cust VALUES(101, \\’JACK\\’);
1 row created.
SQL> INSERT INTO cust VALUES(102, \\’SMITH\\’);
1 row created.
As a DBA, you execute the following command from another session:
ALTER TABLESPACE sales READ ONLY;
Which statement is true regarding the effect of this command on the transaction in Scott\\’s session?
A. The command fails as a transaction is still pending.
B. The transaction in Scott\\’s session is rolled back and the tablespace becomes readonly.
C. The command waits and the user SCOTT can execute data manipulation language (DML) statements only as part of
the current transaction.
D. The command hangs until all transactions on the objects in the tablespace commit or rollback, and then the
tablespace is placed in readonly mode.
Correct Answer: B

QUESTION 3
You wish to enable an audit policy for all database users, except SYS, SYSTEM, and SCOTT.
You issue the following statements:
SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYS;
SQL> AUDIT POLICY ORA_DATABASE_PARAMETER EXCEPT SYSTEM; SQL> AUDIT POLICY
ORA_DATABASE_PARAMETER EXCEPT SCOTT; For which database users is the audit policy now active?
A. All users except SYS
B. All users except SCOTT
C. All users except sys and SCOTT
D. All users except sys, system, and SCOTT
Correct Answer: B
If you run multiple AUDIT statements on the same unified audit policy but specify different EXCEPT users, then Oracle
Database uses the last exception user list, not any of the users from the preceding lists. This means the effect of the
earlier AUDIT POLICY … EXCEPT statements are overridden by the latest AUDIT POLICY … EXCEPT statement.
Note:
*
The ORA_DATABASE_PARAMETER policy audits commonly used Oracle Database parameter settings. By default,
this policy is not enabled.
*
You can use the keyword ALL to audit all actions. The following example shows how to audit all actions on the
HR.EMPLOYEES table, except actions by user pmulligan.
Example Auditing All Actions on a Table
CREATE AUDIT POLICY all_actions_on_hr_emp_pol
ACTIONS ALL ON HR.EMPLOYEES;
AUDIT POLICY all_actions_on_hr_emp_pol EXCEPT pmulligan;

QUESTION 4
Which two tasks must you perform before you begin the upgrade process to Oracle Database 12c? (Choose two.)
A. Put all readonly tablespaces in read write mode
B. Recompile all invalid objects
C. Set the compatible parameter to 12.1.0.1
D. Gather dictionary statistics
E. Empty all user recycle bins
Correct Answer: BE

QUESTION 5
The HR user receives the following error while inserting data into the sales table:

On investigation, you find that the users tablespace uses Automatic Segment Space Management (ASSM). It is the
default tablespace for the HR user with an unlimited quota on it.
Which two methods would you use to resolve this error? (Choose two.)
A. Altering the data file associated with the USERS tablespace to extend automatically
B. Adding a data file to the USERS tablespace
C. Changing segment space management for the USERS tablespace to manual
D. Creating a new tablespace with autoextend enabled and changing the default tablespace of the HR user to the new
tablespace
E. Enabling resumable space allocation by setting the RESUMABLE_TIMEOUT parameter to a nonzero value
Correct Answer: AB

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Latest 1z0-071 exam practice questions 1-5

QUESTION 1
Evaluate the following statement.

Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement?
A. Each row is evaluated by the first WHEN clause and if the condition is false then the row would be evaluated by the
subsequent when clauses.
B. All rows are evaluated by all the three WHEN clauses.
C. Each row is evaluated by the first WHEN clause and if the condition is true, then the row would be evaluated by the
subsequent when clauses.
D. The INSERT statement will return an error because the ELSE clause is missing.
Correct Answer: B

QUESTION 2
View the exhibit for the structure of the STUDENT and FACULTY tables.

You need to display the faculty name followed by the number of students handled by the faculty at the base location.
Examine the following two SQL statements:
Statement 1
SQL>SELECT faculty_name, COUNT(student_id)
FROM student JOIN faculty
USING (faculty_id, location_id)
GROUP BY faculty_name;
Statement 2
SQL>SELECT faculty_name, COUNT(student_id)
FROM student NATURAL JOIN faculty
GROUP BY faculty_name;
Which statement is true regarding the outcome?
A. Only statement 2 executes successfully and gives the required result.
B. Only statement 1 executes successfully and gives the required result.
C. Both statements 1 and 2 execute successfully and give different results.
D. Both statements 1 and 2 execute successfully and give the same required result.
Correct Answer: B

QUESTION 3
Examine the description of the SALES1 table:

SALES2 is a table with the same description as SALES1.
Some sales data is duplicated in both tables.
You want to display the rows from the SALES1 table which are not present in the SALES2 table.
Which set operator generates the required output?
A. SUBTRACT
B. INTERSECT
C. UNION ALL
D. UNION
E. MINUS
Correct Answer: E

QUESTION 4
Examine this query:

Which two methods should you use to prevent prompting for a hire date value when this query is executed?
A. Replace `and1\\’ with `andand1\\’ in the query.
B. Use the DEFINE command before executing the query.
C. Use the UNDEFINE command before executing the query.
D. Execute the SET VERIFY ON command before executing the query.
E. Store the query in a script and pass the substitution value to the script when executing it.
F. Execute the SET VERIFY OFF command before executing the query.
Correct Answer: DE

QUESTION 5
Which three privileges can be restricted to a subset of columns in a table? (Choose three.)
A. ALTER
B. DELETE
C. UPDATE
D. SELECT
E. INDEX
F. REFERENCES
G. INSERT
Correct Answer: BCD

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Latest 1z0-808 exam practice questions 1-5

QUESTION 1
Given:

What is the result?

A. Option A
B. Option B
C. Option C
D. Option D
Correct Answer: D

QUESTION 2
Given the code fragment:
StringBuilder sb = new StringBuilder ( ) ;
Sb.append (“world”);
Which code fragment prints Hello World?
A. sb.insert(0,”Hello “); System.out.println(sb);
B. sb.append(0,”Hello “); System.out.println(sb);
C. sb.add(0,”Hello “); System.out.println(sb);
D. sb.set(0,”Hello “); System.out.println(sb);D
Correct Answer: A
Explanation: The java.lang.StringBuilder.insert(int offset, char c) method inserts the string representation of the char
argument into this sequence. The second argument is inserted into the contents of this sequence at the position
indicated by offset. The length of this sequence increases by one.The offset argument must be greater than or equal to
0, and less than or equal to the length of this sequence.
Reference: Java.lang.StringBuilder.insert() Method

QUESTION 3
Given:

Which is true?
A. Sum for 0 to 0 = 55
B. Sum for 0 to 10 = 55
C. Compilation fails due to error on line 6.
D. Compilation fails due to error on line 7.
E. An Exception is thrown at the runtime.
Correct Answer: D
Loop variables scope limited to that enclosing loop. So in this case, the scope of the loop variable x declared at line 5,
limited to that for loop. Trying to access that variable at line 7, which is out of scope of the variable x, causes a compile
time error. So compilation fails due to error at line 7. Hence option D is correct. Options A and B are incorrect, since
code fails to compile. Reference: httpsy/docs.oracle.com/javase/tutorial/java/nutsandbolts/variables.html

QUESTION 4
Given:

Which code fragment, when inserted at line 9, enables the code to print true?
A. String str2 = str1;
B. String str2 = new string (str1);
C. String str2 = sb1.toString();
D. String str2 = “Duke”;
Correct Answer: A

QUESTION 5
Which statement is true about the default constructor of a top-level class?
A. It can take arguments.
B. It has private access modifier in its declaration.
C. It can be overloaded.
D. The default constructor of a subclass always invokes the no-argument constructor of its superclass.
Correct Answer: D
Explanation: In both Java and C#, a “default constructor” refers to a nullary constructor that is automatically generated
by the compiler if no constructors have been defined for the class. The default constructor is also empty, meaning that it
does nothing. A programmer- defined constructor that takes no parameters is also called a default constructor.

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