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You execute this command:
Sufficient storage is available in the filesystem /u01.
Which two statements are true about the BIG_TBS tablespace? (Choose two.)
A. AUTOEXTEND is possible for the data file
B. It must be bigger than the largest SMALL FILE tablespace
C. Additional data files may not be added
D. It will be a dictionary-managed tablespace by default
E. It will always have a 32K blocksize
Correct Answer: AC
Which three statements are true about advanced connection options supported by Oracle Net for connection to Oracle Database instances? (Choose three.)
A. Connect Time Failover requires the use of Transparent Application Failover (TAF)
B. Source Routing requires the use of a name server
C. Source Routing enables the use of Connection Manager (CMAN) which enables network traffic to be routed through a firewall
D. Load Balancing can balance the number of connections to dispatchers when using a Shared Server configuration
E. Load Balancing requires the use of a name server
F. Connect Time Failover requires the connect string to have two or more listener addresses configured
Correct Answer: CDF
Which two statements are true about date/time functions in a session where NLS_DATE_FORMAT is set to DD-MON-YYYY HH24:MI: SS? (Choose two.)
A. CURRENT_TIMESTAMP returns the same date and time as SYSDATE with additional details of fractional seconds
B. SYSDATE can be queried only from the DUAL table
C. CURRENT_DATE returns the current date and time as per the session time zone
D. SYSDATE can be used in expressions only if the default date format is DD-MON-RR
E. SYSDATE and CURRENT_DATE return the current date and time set for the operating system of the database server
F. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
Correct Answer: CF
A database is configured to use automatic undo management with temporary undo enabled.
An UPDATE is executed on a temporary table.
Where is the UNDO stored?
A. in the undo tablespace
B. in the SYSAUX tablespace
C. in the SGA
D. in the PGA
E. in the temporary tablespace
Correct Answer: E
Oracle database 12c Release 1 (12.1) introduced the concept of temporary undo, allowing the undo segments for global temporary tables to be stored in the temporary tablespace. This allows global temporary tables to be used in physical standby databases and read-only databases, as well as removing the need to create a redo.
16.7 Managing Temporary Undo By default, undo records for temporary tables are stored in the undo tablespace and are logged in the redo, which is the same way undo is managed for persistent tables.
However, you can use the TEMP_UNDO_ENABLED initialization parameter to separate undo for temporary tables from undo for persistent tables. When this parameter is set to TRUE, the undo for temporary tables is called temporary undo.
16.7.1 About Managing Temporary Undo records are stored in the database\’s temporary tablespaces and thus are not logged in the redo log. When temporary undo is enabled, some of the segments used by the temporary tablespaces store the temporary undo, and these segments are called temporary undo segments.
Reference: http://www.dba-oracle.com/t_temp_undo_enabled.htm Reference: https://docs.oracle.com/database/121/ADMIN/undo.htm#ADMIN11479
You have been tasked to create a table for a banking application.
One of the columns must meet three requirements:
1. Be stored in a format supporting date arithmetic without using conversion functions
2. Store a loan period of up to 10 years
3. Be used for calculating interest for the number of days the loan remains unpaid
Which data type should you use?
A. INTERVAL YEAR TO MONTH
B. INTERVAL DAY TO SECOND
C. TIMESTAMP WITH LOCAL TIMEZONE
E. TIMESTAMP WITH TIMEZONE
Correct Answer: B
Since the third requirement for banking application is
\’Be used for calculating interest for the number of days the loan remains unpaid\’
So, Data Type \’INTERVAL DAY TO SECOND\’ must be used to calculate the duration in a number of days.
In the file of a single instance database, LOCAL_LISTENER is set to LISTENER_1.
The TNSNAMES.ORA file in $ORACLE_HOME/network/admin in the database home contains:
Which statement is true?
A. Dynamic service registration cannot be used for this database instance
B. The LREG process registers services dynamically with the LISTENER_1 listener
C. LISTENER_1 must also be defined in the LISTENER.ORA file to enable dynamic service registration
D. There are two listeners named LISTENER and LISTENER_1 running simultaneously using port 1521 on the same host as the database instances
E. The definition for LISTENER_1 requires a CONNECT_DATA section to enable dynamic service registration
Correct Answer: B
The listener forwards client requests to supported services. These services are dynamically registered with the listener. This dynamic registration feature is called service registration. The registration is performed by the Listener Registration (LREG) process. Dynamic service registration does not require any manual configuration in the listener.ora file.
Which three statements are true concerning logical and physical database structures? (Choose three.)
A. All tablespaces may have one or more data files
B. The extent of a segment must always reside in the same data file
C. A small file tablespace might be bigger than a big file tablespace
D. A segment can span multiple data files in some tablespaces
E. A segment\’s blocks can be of different sizes
F. A segment might have only one extent
G. Segments can span multiple tablespaces
Correct Answer: CDF
Which two statements are true regarding a SAVEPOINT? (Choose two.)
A. Rolling back to a SAVEPOINT can undo a CREATE INDEX statement
B. Rolling back to a SAVEPOINT can undo a TRUNCATE statement
C. Only one SAVEPOINT may be issued in a transaction
D. A SAVEPOINT does not issue a COMMIT
E. Rolling back to a SAVEPOINT can undo a DELETE statement
Correct Answer: DE
Which three functions are performed by dispatchers in a shared server configuration? (Choose three.)
A. writing inbound requests to the common request queue from all shared server connections
B. checking for outbound shared server responses on the common outbound response queue
C. receiving inbound requests from processes using shared server connections
D. sending each connection input request to the appropriate shared server input queue
E. broadcasting shared server session responses back to requesters on all connections
F. sending shared server session responses back to requesters on the appropriate connection
Correct Answer: ACF
Ref: https://docs.oracle.com/cd/B28359_01/server.111/b28310/manproc001.htm#ADMIN11168 An ***idle shared server process picks up*** the virtual circuit from the common queue
Which two statements are true about the SET VERIFY ON command? (Choose two.)
A. It can be used only in SQL*Plus
B. It displays values for variables used only in the WHERE clause of a query
C. It can be used in SQL Developer and SQL*Plus
D. It displays values for variables created by the DEFINE command
E. It displays values for variables prefixed with and
Correct Answer: CD
Which three statements are true about a self to join? (Choose three.)
A. The ON clause must be used
B. The query must use two different aliases for the table
C. It must be an equijoin
D. It must be an inner join
E. The ON clause can be used
F. It can be an outer join
Correct Answer: BEF
You want to write a query that prompts for two column names and the WHERE condition each time it is executed in a session but only prompts for the table name the first time it is executed.
The variables used in your query are never undefined in your session.
Which query can be used?
A. SELECT andandcol1, andandcol2 FROM andtable WHERE andandcondition = andandcond;
B. SELECT andcol1, andcol2 FROM andandtable WHERE andcondition;
C. SELECT andcol1, andcol2 FROM “andtable” WHERE andcondition;
D. SELECT `andandcol1\’, `andandcol2\’ FROM andtable WHERE `andandcondition\’ = `andcond\’;
E. SELECT andandcol1, andandcol2 FROM andtable WHERE andandcondition;
Correct Answer: B
Examine the description of the CUSTOMERS table: You want to display details of all customers who reside in cities starting with the letter D followed by at least two characters.
Which query can be used?
A. SELECT * FROM customers WHERE city LIKE `D_%\’;
B. SELECT * FROM customers WHERE city = `%D_\’;
C. SELECT * FROM customers WHERE city LIKE `D_\’;
D. SELECT * FROM customers WHERE city = `D_%\’;
Correct Answer: A
Examine this command:
Which two statements are true? (Choose two.)
A. DML may be performed on tables with one or more extents in this data file during the execution of this command.
B. The tablespace containing SALES1.DBF must be altered READ ONLY before executing the command.
C. The tablespace containing SALES1.DBF must be altered OFFLINE before executing the command.
D. If Oracle Managed Files (OMF) is used, then the file is renamed but moved to DB_CREATE_FILE_DEST.
E. The file is renamed and stored in the same location
Correct Answer: AE
Queries and DML and DDL operations can be performed while the data file is being moved, for example, 1-SELECT statements against tables and partitions 2-Creation of tables and indexes 3- Rebuilding of indexes Other notes: 1- If objects are compressed while the data file is moved, the compression remains the same. 2- You do not have to shut down the database or take the data file offline while you move a data file to
another location, disk, or storage system.
3- You can omit the TO clause only when an Oracle-managed file is used. In this case, the
DB_CREATE_FILE_DEST initialization parameter should be set to indicate the new location.
4-If the REUSE option is specified, the existing file is overwritten.
note: The REUSE keyword indicates the new file should be created even if it already exists.
5-If the KEEP clause is specified, the old file will be kept after the move operation. The KEEP clause is not
allowed if the source file is an Oracle-managed file.
Which three statements are true about dropping and unused columns in an Oracle database? (Choose three.)
A. A primary key column referenced by another column as a foreign key can be dropped if using the CASCADE option.
B. An UNUSED column\’s space is reclaimed automatically when the block containing that column is next queried.
C. An UNUSED column\’s space is reclaimed automatically when the row containing that column is next queried.
D. Partition key columns cannot be dropped.
E. A DROP COLUMN command can be rolled back
F. A column that is set to UNUSED still counts towards the limit of 1000 columns per table
Correct Answer: ADF
Answer A is RIGHT: Orders is the Parent table with PRIMARY KEY ord_no, Order_items is the child table which ord_no is REFERENCE KEY that references ord_no of the Parent table, now drop PRIMARY KEY on Orders by command: ALTER TABLE orders DROP COLUMN ORD_NO CASCADE CONSTRAINTS;
Answer D is RIGHT: ORA-12984: cannot drop partitioning column Answer F is RIGHT: Unused Columns Count against 1000-column Table Limit Causing ORA-01792 on Compressed Table (Doc ID 2259600.1) and “ORA-01792: Maximum Number Of Columns In A Table Or View Is 1000” AND HIDDEN_COLUMN name is recreated with date and timestamp (Doc ID 2624150.1)
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