| Exam Code | 1z0-082 |
| Exam Name | Oracle Database Administration I |
| Questions | 142 Questions Answers With Explanation |
| Update Date | July 15,2024 |
| Price |
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Which three statements are true about the tools used to configure Oracle Net Services? (Choose three.)
A. The Oracle Net Configuration Assistant is only used when running the Oracle installer
B. Oracle Net Manager can be used to centrally configure listeners on any database servertarget
C. The lsnrctl utility requires a listener.ora file to exist before it is started
D. Oracle Net Manager can be used to locally configure naming methods on a databaseserver
E. Enterprise Manager Cloud Control can be used to centrally configure listeners on anymanaged database server
F. Enterprise Manager Cloud Control can be used to centrally configure net service namesfor any database server target
In your data center, Oracle Managed Files (OMF) is used for all databases.All tablespaces are smallfile tablespaces.SALES_Q1 is a permanent user-defined tablespace in the SALES database.Examine this command which is about to be issued by a DBA logged in to the SALESdatabase:ALTER TABLESPACE sales_q1 ADD DATAFILE;Which are two actions, either one of which you could take to ensure that the commandexecutes successfully? (Choose two.)
A. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specifywith at least 50 Mb of available space.
B. Specify a path in the DATAFILE clause of the command specifying a location with atleast 100M of available space.
C. Ensure that DB_CREATE_FILE_DEST specifies a location with at least 100 Mb ofavailable space.
D. Add the AUTOEXTEND ON clause with NEXT set to 100M.
E. Ensure that DB_RECOVERY_FILE_DEST and DB_CREATE_FILE_DEST each specifylocations with at least 50 Mb of available space.
In which three situations does a new transaction always start? (Choose three.)
A. when issuing a SELECT FOR UPDATE statement after a CREATE TABLE AS SELECTstatement was issued in the same session
B. when issuing a TRUNCATE statement after a SELECT statement was issued in thesame session
C. when issuing a CREATE TABLE statement after a SELECT statement was issued in thesame session
D. when issuing the first Data Manipulation Language (DML) statement after a COMMITOR ROLLBACK statement was issued in the same session
E. when issuing a CREATE INDEX statement after a CREATE TABLE statementcompleted successfully in the same session
F. when issuing a DML statement after a DML statement failed in the same session
Which three are types of segments in an Oracle Database? (Choose three.)
A. undo
B. index
C. stored procedures
D. sequences
E. tables
F. clusters
Which two statements are true about the PMON background process? (Choose two.)
A. It registers database services with all local and remote listeners known to the databaseinstance
B. It frees resources held by abnormally terminated processes
C. It records checkpoint information in the control file
D. It frees unused temporary segments
E. It kills sessions that exceed idle time
Which three statements are true about table data storage in an Oracle Database? (Choose three.)
A. Data block headers contain their own Data Block Address (DBA)
B. A table row piece can be chained across several database blocks
C. Multiple row pieces from the same row may be stored in different database blocks
D. Multiple row pieces from the same row may be stored in the same block
E. Data block free space is always contiguous in the middle of the block
F. Index block free space is always contiguous in the middle of the block
Which three statements are true about single-row functions? (Choose three.)
A. They can be used only in the WHERE clause of a SELECT statement
B. The argument can be a column name, variable, literal or an expression
C. The data type returned can be different from the data type of the argument
D. They can be nested to any level
E. They can accept only one argument
F. They return a single result row per table
Examine this command:CREATE UNDO TABLESPACE undotbs01DATAFILE ‘undotbs_01.dbf’SIZE 100MAUTOEXTEND ON;Which two actions must you take to ensure UNDOTBS01 is used as the default UNDO tablespace? (Choose two.)
A. Add the SEGMENT SPACE MANAGEMENT AUTO clause
B. Set UNDO_TABLESPACE to UNDOTBS01
C. Add the NOLOGGING clause
D. Make certain that the database operates in automatic undo management mode
E. Add the ONLINE clause
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 enablesnetwork traffic to be routed through a firewall
D. Load Balancing can balance the number of connections to dispatchers when using aShared 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 listeneraddresses configured
Which two statements are true about UNDO and REDO? (Choose two.)
A. The generation of UNDO generates REDO
B. DML modifies Oracle database objects and only generates UNDO
C. The generation of REDO generates UNDO
D. DML modifies Oracle database objects and only generates REDO
The CUSTOMERS table has a CUST_CREDIT_LIMIT column of data type NUMBER. Which two queries execute successfully? (Choose two.)
A. SELECT NVL(cust_credit_linit * .15, ‘Not Available’) FROM customers;
B. SELECT NVL2(cust_credit_linit * .15, ‘Not Available’) FROM customers;
C. SELECT NVL(TO_CHAR(cust_credit_limit * .15), ‘Not Available’) FROM customers;
D. SELECT TO_CHAR(NVL(cust_credit_limit * .15, ‘Not Available’)) FROM customers;
E. SELECT NVL2(cust_credit_limit, TO_CHAR(cust_credit_limit * .15), ‘Not Available’)FROM customeAnswer: B,C
rs;
Which two are true about shrinking a segment online? (Choose two.)
A. It is not possible to shrink either indexes or Index Organized Tables (IOTs)
B. It always eliminates all migrated rows if any exist in the table
C. To shrink a table it must have a PRIMARY KEY constraint
D. To shrink a table it must have a UNIQUE KEY constraint
E. To shrink a table it must have row movement enabled
F. It must be in a tablespace that uses Automatic Segment Space Management (ASSM)
You execute this command:CREATE SMALLFILE TABLESPACE salesDATAFILE ‘/u01/app/oracle/sales01.dbfSIZE 5GSEGMENT SPACE MANAGEMENT AUTO;Which two actions must you take to ensure UNDOTBS01 is used as the default UNDOtablespace? (Choose two.)
A. It must be smaller than the smallest BIGFILE tablespace
B. Free space is managed using freelists
C. Any data files added to the tablespace must have a size of 5 gigabytes
D. It uses the database default blocksize
E. It is a locally managed tablespace
A database is configured to use automatic undo management with temporary undoenabled.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
Which four account management capabilities can be configured using Oracle profiles? (Choose four.)
A. the number of hours for which an account is locked after the configured number of loginattempts has been reached
B. the number of days for which an account may be inactive before it is locked
C. the maximum amount of CPU time allowed for a user’s sessions before their account islocked
D. the ability to prevent a password from ever being reused
E. the number of password changes required within a period of time before a password canbe reused
F. the number of days for which an account is locked after the configured number of loginattempts has been reached
G. the maximum number of sessions permitted for a user before the account is locked
Which two statements are true about views used for viewing tablespace and datafile information? (Choose two.)
A. Tablespace free space can be viewed in VSTABLESPACE
B. VSTABLESPACE displays information that is contained in the controlfile abouttablespaces
C. VSTABLESPACE displays information about tablespaces contained in the datadictionary
D. Tablespace free space can be viewed in DBA_TABLESPACES
E. A datafile can be renamed when the database is in MOUNT state and the new file nameis displayed when querying DBA_DATA_FILES after the database is opened
Which three statements are true about undo segments and the use of undo by transactions in an Oracle database instance? (Choose three.)
A. An undo segment may be used by multiple transactions simultaneously
B. Undo segments can wrap around to the first extent when a transaction fills the lastextend of the undo segment
C. Undo segments have a minimum of three extents
D. Undo segments can extend when a transaction fills the last extent of the undo segment
E. A single transaction may use multiple undo segments simultaneously
F. Undo segments must be stored in a BIGFILE tablespace
G. Undo segments must be stored in a SMALLFILE tablespace
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 additionaldetails 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 operatingsystem of the database server
F. CURRENT_TIMESTAMP returns the same date as CURRENT_DATE
In the ORCL database, UNDOTBS1 is the active undo tablespace with these properties:1. A size of 100 MB2. AUTOEXTEND is off3. UNDO_RETENTION is set to 15 minutes4. It has RETENTION GUARANTEEUNDOTBS1 fills with uncommitted undo 10 minutes after the database opens.What will happen when the next update is attempted by any transaction?
A. It succeeds and the generated undo is stored in SYSTEM.
B. It fails and returns the error message “ORA-30036: unable to extend segment by 8 in
undo tablespace ‘UNDOTBS1’ “.
C. It succeeds and the least recently written undo block of UNDOTBS1 is overwritten bythe generated undo.
D. It succeeds and the generated undo is stored in SYSAUX.
E. It succeeds and the least recently read undo block of UNDOTBS1 is overwritten by thegenerated undo.
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
