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NEW QUESTION 50
Which three statements are true regarding single row subqueries?

• A. They must be placed on the right side of the comparison operator or condition.
• B. They must be placed on the left side of the comparison operator or condition.
• C. A SQL statement may have multiple single row subquery blocks.
• D. They can be used in the having clause.
• E. They must return a row to prevent errors in the SQL statement.
• F. They can be used in the where clause.

Answer: C,D,F

 

NEW QUESTION 51
Which two statements are true about segment types in an Oracle Database?

• A. Temporary segments are only stored in a temporary tablespace.
• B. Table segments always have two or more extents.
• C. Index segments always have two or more extents.
• D. Cluster segments may contain data from multiple tables.
• E. Undo segments are only stored in an undo tablespace.

Answer: A

 

NEW QUESTION 52
Which two statements are true about the PMON background process? (Choose two.)

• A. It frees unused temporary segments
• B. It kills sessions that exceed idle time
• C. It records checkpoint information in the control file
• D. It registers database services with all local and remote listeners known to the database instance
• E. It frees resources held by abnormally terminated processes

Answer: D,E

 

NEW QUESTION 53
Which two tasks can you perform using DBCA for databases? (Choose two.)

• A. Configure incremental backups for a new database
• B. Enable flashback database for an existing database
• C. Configure a nonstandard block size for a new database
• D. Change the standard block size of an existing database
• E. Register a new database with an available Enterprise Manager Management server

Answer: C,E

Explanation:
Reference:
https://docs.oracle.com/cd/B16254_01/doc/server.102/b14196/install003.htm

 

NEW QUESTION 54
Which three statements are true about views in an Oracle database? (Choose three.)

• A. Inserting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
• B. Deleting one or more rows using a view whose defining query contains a GROUP BY clause will cause an error
• C. Views can be updated without the need to re-grant privileges on the view
• D. Tables in the defining query of a view must always exist in order to create the view
• E. Data Manipulation Language (DML) can always be used on views
• F. The WITH CHECK clause prevents certain rows from being displayed when querying the view
• G. The WITH CHECK clause prevents certain rows from being updated or inserted

Answer: A,D,E

 

NEW QUESTION 55
In the SALES database, DEFERRED_SEGMENT_CREATION is TRUE.
Examine this command:
SQL> CREATE TABLE T1(c1 INT PRIMARY KEY, c2 CLOB);
Which segment or segments, if any, are created as a result of executing the command?

• A. T1, an index segment for the primary key, a LOB segment, and a lobindex segment
• B. T1 only
• C. T1 and an index segment created for the primary key only
• D. no segments are created
• E. T1, an index segment for the primary key, and a LOB segment only

Answer: B

 

NEW QUESTION 56
Which two are true about shrinking a segment online? (Choose two.)

• A. To shrink a table it must have row movement enabled
• B. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
• C. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
• D. It always eliminates all migrated rows if any exist in the table
• E. To shrink a table it must have a UNIQUE KEY constraint
• F. To shrink a table it must have a PRIMARY KEY constraint

Answer: A,F

Explanation:
https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_3001.htm

 

NEW QUESTION 57
A script abc.sql must be executed to perform a job.
A database user HR, who is defined in this database, executes this command:
$ sqlplus hr/hr@orcl @abc.sql
What will happen upon execution?

• A. The command fails and reports an error because @ is used twice
• B. The command succeeds and HR will be connected to the orcl and abc.sql databases
• C. The command fails because the script must refer to the full path name
• D. The command succeeds and HR will be connected to the orcl database instance, and the abc.sql script will be executed

Answer: D

 

NEW QUESTION 58
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:

What must you do so that KING is authenticated by the OS when connecting to the database instance?

• A. Unset REMOTE_LOGIN_PASSWORDFILE
• B. Alter user KING to be IDENTIFIED EXTERNALLY
• C. Set OS_AUTHENT_PREFIX to OPS$
• D. Have the OS administrator add KING to the OSDBA group
• E. Grant DBA to KING

Answer: A

 

NEW QUESTION 59
Examine the description of the CUSTOMERS table:

For customers whose income level has a value, you want to display the first name and due amount as 5% of their credit limit. Customers whose due amount is null should not be displayed.
Which query should be used?

• A. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
  FROM customers
  WHERE cust_income_level IS NOT NULL
  AND cust_credit_limit IS NOT NULL;
• B. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
  FROM customers
  WHERE cust_incoms_level IS NOT NULL
  AND due_amount IS NOT NULL;
• C. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
  FROM customers
  WHERE cust_income_level != NULL
  AND cust_credit_level !=NULL;
• D. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
  FROM customers
  WHERE cust_income_level != NULL
  AND due_amount !=NULL;
• E. SELECT cust_first_name, cust_credit_limit * .05 AS DUE_AMOUNT
  FROM customers
  WHERE cust_income_level <> NULL
  AND due_amount <> NULL;

Answer: A

 

NEW QUESTION 60
The ORCL database has RESUMABLE__TIMEOUT = 7200 and
DEFERRED_SEGMENT_CREATION = FALSE
User U1 has a 1 MB quota in tablespace DATA.
U1 executes this command:
SQL> CREATE TABLE t1 AS
(SELECT object_name, sharing, created
FROM dba_objects);
U1 complains that the command is taking too long to execute.
In the alert log, the database administrator (DBA) finds this:
2017-03-06T12:15:17.183438+05:30
statement in resumable session 'User U1(136), Session 1, Instance 1'
was suspended due to ORA-01536: space quota exceeded for tablespace
'DATA'
Which are three actions any one of which the DBA could take to resume the session? (Choose three.)

• A. Increase U1's quota sufficiently in DATA
• B. Set AUTOEXTEND ON for data files in DATA
• C. Grant UNLIMITED TABLESPACE to U1
• D. Drop other U1 objects in DATA
• E. Add a data file to DATA
• F. Set DEFERRED_SEGMENT_CREATION to TRUE

Answer: A,B,F

 

NEW QUESTION 61
What two are benefits of Data Pump? (Choose two.)

• A. It makes use of client system resources.
• B. It can restart failed export jobs.
• C. It can export data into sequential media, such as tapes.
• D. It can execute in parallel.
• E. It represents database metadata information as DDL statements in the dump file.

Answer: B,D

 

NEW QUESTION 62
Which two statements are true about Enterprise Manager Database Express? (Choose two.)

• A. It can be used to switch a database into ARCHIVELOGMODE
• B. The same port number can be used for multiple Database Express configurations for multiple databases on the same host
• C. It is available only when the database is open
• D. It can be used to perform database recovery
• E. The same port number can be used for Database Express configurations for databases on different hosts

Answer: A,B

Explanation:
https://docs.oracle.com/en/database/oracle/oracle-database/19/admqs/getting-started-with- database-administration.html#GUID-EB851101-07BE-4038-BB9D-06E01CC7F5D5

 

NEW QUESTION 63
Which two statements are true about trace files produced by the Oracle Database server?
(Choose two.)

• A. All trace files contain error information that require contacting Oracle Support
• B. Trace file names are based on the database name concatenated with a sequential number
• C. They can be written by server processes
• D. They can be written by background processes
• E. Trace files are written to the Fast Recovery Area (FRA)

Answer: C,D

Explanation:
https://gerardnico.com/db/oracle/trace_file

 

NEW QUESTION 64
In one of your databases, user KING is:
1. Not a DBA user
2. An operating system (OS) user
Examine this command and its output:

What must you do so that KING is authenticated by the OS when connecting to the database instance?

• A. Unset REMOTE_LOGIN_PASSWORDFILE
• B. Alter user KING to be IDENTIFIED EXTERNALLY
• C. Set OS_AUTHEN_PREFIX to OPS$
• D. Have the OS administrator add KING to the OSDBA group
• E. Grant DBA to KING

Answer: A

 

NEW QUESTION 65
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