Oracle 1z0-497
Oracle Database 12c Essentials
Version: 6.0
QUESTION NO: 1
Which statement about CDB architecture is true?
A. Oracle-supplied metadata resides only in the root container. B. A seed PDB can sometimes be opened for particular operations. C. Multiple PDBs with the same name can reside in the same CDB. D. A CDB can have an infinite number of PDBs.
E. You can create common users in PDBs. Answer: A
Reference: http://docs.oracle.com/cd/E16655_01/server.121/e17633/cdbovrvw.htm#CNCPT89235
QUESTION NO: 2
As part of your Oracle Database 12c post-installation tasks, you run these commands:
Cd $ORACLE_HOME/bin srvctl stop database -d myDb chopt enable dm
srvctl start database -d myDb
What does this do?
A. It enables the Oracle Data Mining option in your Oracle binary files. B. It creates the Fast Recovery Area disk group.
C. It generates Client Static Library.
D. It configures one of the Oracle user accounts. E. It configures Oracle Net Services.
F. It configures Oracle Messaging Gateway. Answer: A
Reference: http://docs.oracle.com/cd/E16655_01/install.121/e17889/postinst.htm#RILIN1049 (see 4.4)
QUESTION NO: 3
Exhibit below:
Which three statements are true about terminating a session?
A. Without any error, you can terminate the active session by executing:
SQL> ALTER SYSTEM KILL SESSION '7, 15';
B. You can terminate the active session by executing:
SQL> ALTER SYSTEM KILL SESSION "7, 15'; But you also get the error message:
ORA-00028: your session has been killed
C. You cannot terminate the active session. You have to wait until that session becomes inactive. D. Without any error, you can terminate the inactive session by executing:
SQL> ALTER SYSTEM KILL SESSION '12, 63';
E. When an inactive session is killed, the status of that session remains visible in VSSESSION
with status KILLED. The rowf the terminated session is removed from VSSESSION after the user attempts to use the session again.
F. You cannot terminate the inactive session. You have to wait until that session becomes active
again.
Answer: B,D,E
Explanation: B (not A, Not C):
* You terminate a current session using the SQL statement ALTER SYSTEM KILL SESSION. The following statement terminates the session whose system identifier is 7 and serial number is 15: * Terminating an Active Session
If a user session is processing a transaction (ACTIVE status) when you terminate the session, the transaction is rolled back and the user immediately receives the following message:
ORA-00028: your session has been killed ALTER SYSTEM KILL SESSION '7,15'; E (not F): Terminating an Inactive Session
If the session is not making a SQL call to Oracle Database (is INACTIVE) when it is terminated, the ORA-00028 message is not returned immediately. The message is not returned until the user subsequently attempts to use the terminated session.
When an inactive session has been terminated, the STATUS of the session in the V$SESSION view is KILLED. The row for the terminated session is removed from V$SESSION after the user attempts to use the session again and receives the ORA-00028 message.
Reference: Oracle Database Administrator's Guide, Terminating Sessions
URL: http://docs.oracle.com/cd/B28359_01/server.111/b28310/manproc008.htm#ADMIN11192
QUESTION NO: 4
Which two statements are true about shared server sessions?
A. No Program Global Area (PGA) is allocated for shared server processes. B. User Global Area is stored in System Global Area (SGA).
C. Shared SQL Area is allocated from Program Global Area (PGA). D. Private SQL Area is allocated from Library Cache.
E. Large Pool is used for SQL work areas. Answer: B,D
Explanation:
Reference: Oracle Database Concepts, 12c, Memory Architecture
QUESTION NO: 5
Which targets can be managed by using Enterprise Manager Cloud Control?
A. Hosts and databases
B. Hosts, databases, and application servers C. Application servers and web applications
D. Databases, Oracle Management Server (OMS), and Oracle Management Repository (OMR) E. Databases, application servers, and web applications
F. Hosts, databases, application servers, web applications, OMS, and OMR Answer: A
Reference: http://www.oracle.com/technetwork/oem/framework-infra/wp-em12c-security-best-practicesv2-1493383.pdf (page 3, second bulleted point, last couple of sentences)
QUESTION NO: 6
Which two statements are true regarding SQL*Plus?
A. It has commands for performing database administration operations. B. It can be used in interactive but not batch mode for SQL commands. C. It has to be installed separately after the Oracle Database 12c installation.
D. Operating system commands can be executed from the SQL*Plus command prompt. Answer: A,D
Explanation:
Reference: http://docs.oracle.com/cd/B14117_01/server.101/b12170/qstart.htm
QUESTION NO: 7
Which two statements about the Process Monitor (PMON) process are true?
A. PMON performs process recovery when a client process fails. B. During instance startup, PMON takes care of instance recovery. C. PMON performs listener registration.
D. PMON restarts background and dispatcher processes when they fail. E. PMON resolves failures of distributed transactions.
Answer: A,D Explanation:
QUESTION NO: 8
Which statement is true about loading data by using the conventional path of SQL*Loader?
A. Redo is not generated while performing conventional path loads.
C. No exclusive locks are acquired when the conventional path loads are performed.
D. Instead of performing transactions, SQL*Loader directly writes data blocks to the data files. E. INSERT triggers are disabled before the conventional path load and re-enabled at the end of
the load.
Answer: B
Reference: http://docs.oracle.com/cd/A57673_01/DOC/server/doc/SUT73/ch8.htm#data%20paths (see direct loads, integrity constraints, and triggers)
QUESTION NO: 9
Identify three key properties of a transaction in Oracle Database 12c.
A. durability B. consistency C. concurrency D. isolation E. scalability F. manageability Answer: A,B,D Reference: http://docs.oracle.com/cd/E16655_01/server.121/e17633/transact.htm#CNCPT016 QUESTION NO: 10
Which type of file system is NOT valid for storing data files, online redo log files, and control files for a pluggable database?
A. Automatic Storage Management (ASM) B. OS file system
C. logical volume (LVM) D. clustered file system E. RAW
Answer: E Explanation:
QUESTION NO: 11
Which two statements about ADDM are true?
A. Real-Time ADDM uses AWR snapshots of the last 10 minutes. B. Real-Time ADDM uses ASH recent activity from SGA data.
C. Real-Time ADDM analyzes performance in a completely different fashion than regular ADDM. D. Regular ADDM uses AWR snapshots that are not yet purged.
Answer: B,D Explanation:
QUESTION NO: 12
Which two items are key for maintaining data consistency in Oracle Database 12c?
A. undo data B. isolation level C. lock mechanism D. serializability Answer: B,C Reference: http://docs.oracle.com/cd/E11882_01/server.112/e25789/consist.htm#CNCPT88969 (overview of the oracle database locking mechanism)
QUESTION NO: 13
You are about to install Oracle Database 12c Enterprise Edition. Which statement is true?
A. You should not install the Oracle Database software into an existing Oracle home from a
different release.
B. A multitenant container database (CDB) can have several pluggable databases (PDBs) with
different character sets.
C. Oracle recommends that you back up the root. sh script after you complete the installation. D. Cloning an Oracle home is useful if you are performing multiple Oracle Database Installations. E. You can stop existing Oracle processes, including the listener and the database running in the
Oracle home, before the database software installation.
Explanation:
QUESTION NO: 14
Which logical storage relationship is correct?
A. Tablespace< Segment < Extent < Oracle Datablock B. B) Segment < Extent < Oracle Datablock<Tablespace C. Tablespace< Extent < Segment < Oracle Datablock
D. Data File <Tablespace< Segment < Extent < Oracle Datablock Answer: A
Reference: http://www.dummies.com/how-to/content/basics-of-logical-structures-in-oracle-12c.html
QUESTION NO: 15
Which two statements about multitenant architecture are true?
A. Multiple PDBs on a single server need multiple database instances and multiple sets of
database files.
B. Although consolidated into a single physical database, PDBs mimic the behavior of non-CDBs. C. A PDB administrator can use Oracle Flashback or point-in-time recovery to retrieve lost data
from a PDB, only by shutting down all the PDBs from the CDB.
D. It is easier to collect performance metrics for many databases in a CDB than individual
non-CDB databases.
E. It takes more time to apply a patch to one CDB that holds hundreds of PDBs than to hundreds
of non-CDB databases.
Answer: B,D
Explanation: B: A PDB is a portable collection of schemas, schema objects, and nonschema
objects that appears to an Oracle Net client as a non-CDB. All Oracle databases before Oracle Database 12c were non-CDBs.
D: Ease of performance tuning
It is easier to collect performance metrics for a single database than for multiple databases. It is easier to size one SGA than 100 SGAs.
Reference: Benefits of the Multitenant Architecture for Database Consolidation
URL: http://docs.oracle.com/cd/E16655_01/server.121/e17633/cdbovrvw.htm#CNCPT89239
QUESTION NO: 16
Which three statements represent the benefits of multitenant architecture for database consolidation?
A. You can unplug a PDB from a development CDB and plug it into a production CDB, which
allows for easier and more rapid movement of data and code.
B. You can consolidate shared database memory by combining multiple PDBs in a single CDB. C. Patching individual PDBs requires the same amount of time as patching individual databases. D. Consolidating separate databases into a single CDB requires the same amount of storage
allocation.
E. In multitenant architecture, a PDB behaves the same as a non-CDB as seen from a client
connecting with Oracle Net. No client modification is required.
Answer: A,B,E
Explanation: By design, you can quickly plug a PDB into a CDB, unplug the PDB from the CDB,
and then plug this PDB into a different CDB. The implementation technique for plugging and unplugging is similar to the transportable tablespace technique.
A PDB is a portable collection of schemas, schema objects, and nonschema objects that appears to an Oracle Net client as a non-CDB. All Oracle databases before Oracle Database 12c were non-CDBs.
Reference: Benefits of the Multitenant Architecture for Database Consolidation
URL: http://docs.oracle.com/cd/E16655_01/server.121/e17633/cdbovrvw.htm#CNCPT89239
QUESTION NO: 17
Which statement about the Oracle Advanced Security Data Redaction feature is true?
B. It securely manages encryption keys.
C. It protects against theft or loss of disks and backups. D. It prevents OS users from inspecting tablespace files. E. It limits the exposure of sensitive data in applications. F. It alters data in caches, buffers, and persistent storage.
G. It impacts operational activities such as backup & restore, upgrade & patch, and replication. Answer: E
Explanation: Redacting Sensitive Data for Display
Data Redaction provides selective, on-the-fly redaction of sensitive data in query results prior to display by applications so that unauthorized users cannot view the sensitive data. It enables consistent redaction of database columns across application modules accessing the same data. Data Redaction minimizes changes to applications because it does not alter actual data in internal database buffers, caches, or storage, and it preserves the original data type and formatting when transformed data is returned to the application. Data Redaction has no
impact on database operational activities such as backup and restore, upgrade and patch, and high availability clusters.
Reference: Oracle Advanced Security, 12c, Oracle Data Sheet
QUESTION NO: 18
Which three statements about Automatic Database Diagnostic Monitor (ADDM) are true?
A. It requires the database to be open.
B. It analyzes the performance of specified objects. C. It implements all recommendations automatically.
D. It recommends solutions and quantifies expected benefits.
E. It retains snapshots in the SYSAUX tablespace until the database is restarted. F. It analyzes the snapshots stored in the Automatic Workload Repository (AWR). Answer: A,D,F
Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14211/diagnsis.htm
QUESTION NO: 19
A. 7801 B. 5500 C. 2243 D. 1521 E. 22 Answer: D
Reference: http://docs.oracle.com/cd/B25329_01/doc/install.102/b25143.pdf (page 4, first bulleted point)
QUESTION NO: 20
Your customer is looking for a solution to address these downtime needs:
- Online addition and removal of disks should automatically rebalance data across new storage configurations while storage, database, and applications remain online.
- Dynamically add or remove clustered nodes without disrupting the database or applications. - Automate the sizing and distribution of shared memory.
- Add a column with a default value without disrupting the database or applications. - Perform rolling patch upgrades.
Which four would you recommend to address those needs?
A. Automatic Storage Management (ASM) B. Online Data and Application change C. Global Data Services (GDS)
D. Real Application Clusters (RAC) E. Oracle Streams
F. Online Table Redefinition G. Oracle Database Vault Answer: A,C,D,F
Explanation:
QUESTION NO: 21
represents the actions performed, in the correct order, if you start up the instance?
a - The control file is read. b - Memory is allocated.
c - Background processes pre started. d -The initialization parameter file is read, e- Redo log files and data files are opened.
A. b, c, a B. d, a, e C. a, e, d, b D. d, b, c, a, e E. c, b, d, a, e Answer: D Explanation: QUESTION NO: 22
Which three components are always part of System Global Area?
A. Database Buffer Cache B. Undo Log Buffer
C. Shared Pool D. Small Pool E. Java Pool F. Private SQL Area Answer: A,C,E Reference: http://docs.oracle.com/cd/E11882_01/server.112/e40540/memory.htm#CNCPT802 QUESTION NO: 23
Which two statements about Database Express are true?
B. It can perform actions outside the database.
C. It has background tasks and processes that periodically collect information via FTP. D. It has two new features: Performance Hub and Composite Active Reports.
E. It is not supported on Standard Edition (SE) and Express Edition (XE). Answer: A,D
Reference: http://www.oracle.com/technetwork/database/manageability/emx-intro-1970113.html
QUESTION NO: 24
Which three operations can the PUBLIC user with the SYSOPER privilege perform?
A. STARTUP B. SHUTDOWN
C. CREATE DATABASE D. DROP DATABASE
E. ALTER DATABASE RECOVER Answer: A,B,E
Reference: http://docs.oracle.com/cd/B28359_01/server.111/b28310/dba006.htm#ADMIN11049
QUESTION NO: 25
To revoke unnecessary and unused privileges, you can use Privilege Analysis. Which sequence should you follow?
1 -Start the analysis.
2 - Set up the analysis policy type (database, role, context). 3 - Generate the results.
4 -View the results in DBA_USED_PRIVSand DBA_UNUSED_PRJVS. 5 - Stop the analysis.
A. 1, 2, 3, 4, 5 B. 2, 1, 5, 3, 4 C. 5, 1, 2, 3, 4
D. 2, 3, I, 5, 4 E. 1, 2, 4, 5, 2 Answer: B Explanation:
QUESTION NO: 26
Which command do you use to create a local role while you are connected as the local user?
A. create local role l_hr;
B. create role c##_hr container=current; C. create role l_hr container=current; D. create role l_hr container=all; Answer: C
Explanation: You can include CONTAINER=CURRENT in the CREATE ROLE statement to
specify the role as a local role.
Reference: Oracle Database Security Guide , Creating a Local Role
QUESTION NO: 27
YOU want to move all objects of the CONSULTANT user from the test database to theDB-USER schema of the production database. Which option of IMPDP would you use to accomplish this task? A. FULL B. SCHEMAS C. TRANSFORM D. REMAP_SCHEMA E. REMAP_TABLESPACE Answer: D Explanation: QUESTION NO: 28
A. renaming the control files B. re-creating the control files
C. dropping a user in your database
D. dropping a tablespace in your database
E. configuring the database instance to operate in ARCHIVELOG or NOARCHIVELOG mode Answer: E
Explanation: To enable or disable archiving, the database must be mounted but not open.
Note: See step 5 below.
Changing the Database Archiving Mode
To change the archiving mode of the database, use the ALTER DATABASE statement with the ARCHIVELOG or NOARCHIVELOG clause. To change the archiving mode, you must be connected to the database with administrator privileges (AS SYSDBA).
The following steps switch the database archiving mode from NOARCHIVELOG to ARCHIVELOG: 1.Shut down the database instance
2.Back up the database.
3.Edit the initialization parameter file to include the initialization parameters that specify the destinations for the archived redo log files
4.Start a new instance and mount, but do not open, the database. STARTUP MOUNT
To enable or disable archiving, the database must be mounted but not open.
5.Change the database archiving mode. Then open the database for normal operations. ALTER DATABASE ARCHIVELOG;
ALTER DATABASE OPEN; 6.Shut down the database. SHUTDOWN IMMEDIATE 7.Back up the database.
QUESTION NO: 29
Table name: PRODUCTS Schema: SCOTT
Tablespace: USERS
Organization: Standard (Heap Organized)
This table contains 20 rows. In the data that has been entered, the PROD_ID column contains only single-digit values, PROD_NAME has a maximum of five characters, and PROD_RATE has four-digit values for all rows.
Which two statements are true regarding the modifications that can be performed to the structure of the PRODUCTS table?
A. PROD_NAME size can be increased from five to 10 characters. B. PROD_ID can be changed from CHAR to NUMBER data type.
C. PROD_RATE size can be changed from NUMBER(4) to NUMBER(6, 2). D. New columns can be added only if they have a NOT NULL constraint. E. None of the existing columns can be dropped because they contain data. Answer: A,C
Explanation:
QUESTION NO: 30
A DBA informs you that an Oracle instance has started. What does this imply?
A. Users can access the data in the database. B. Only SGA has been allocated for the database. C. Only background and user processes are running.
D. Memory areas have been allocated and background processes have been started. Answer: D
Explanation:
QUESTION NO: 31
Real-Time ADDM detects a high-load performance issue within the database. Which condition triggered it?
A. The average active sessions were more than three times the number of CPU cores.
B. Active sessions were more than 10% of total load and CPU utilization was more than 50%. C. Memory allocations were more than 95% of physical memory.
D. Hung sessions were more than 10% of total sessions. E. A deadlock was detected.
F. The session limit was close to 100%. Answer: A
Reference:
http://docs.oracle.com/cd/E16655_01/server.121/e15857/pfgrf_diag.htm#TGDBA95369 (table 7-1)
QUESTION NO: 32
Which command do you use to check for block corruption by validating the database?
A. RMAN> VALIDATE CHECK LOGICAL B. RMAN> VALIDATE BACKUP
C. RMAN> VALIDATE CORRUPT BLOCKS D. RMAN> VALIDATE DATABASE
Answer: D
Explanation: since 11g the syntax got changed to
RMAN> validate [check logical] database; Example:
DGMGRL> validate database verbose d1 output include:
Block Corruptions found NO NO
QUESTION NO: 33
Which tool is recommended for moving a PDB to a non-CDB?
A. RMAN B. Cold Backup
D. Data Pump E. SQL*Plus Answer: E
Explanation: Creating a PDB by Plugging an Unplugged PDB into a CDB
An unplugged PDB consists of an XML file that describes the PDB and the PDB's files (such as the data files and wallet file). You can use the CREATE PLUGGABLE DATABASE statement to plug in an unplugged PDB. To do so, you must include a USING clause that specifies the XML file that describes the PDB.
The source CDB is the CDB from which the PDB was unplugged. The target CDB is the CDB into which you are plugging the PDB. The source CDB and target CDB can be the same CDB or different CDBs.
QUESTION NO: 34
Which two statements describe data dictionary views?
A. They are stored in the SYSTEM tablespace. B. They are based on virtual tables.
C. They are owned by the SYS user.
D. They speed up query and data manipulation language (DML) operations. E. The VSFIXED_TABLEview can be queried to list the names of these views. Answer: A,C
Explanation:
Which two statements about this policy are true?
A. It replaces the first four digits of the value from the SALARY column with the number 9. B. It replaces the first digit of the value from the SALARY column with the number 4. C. It replaces the first digit of the value from the COMMISSION_PCTcolumn with 9. D. It replaces the first nine digits of the value from the COMMISSION_PCTcolumn with 1. E. It uses the full data redaction method.
F. It uses the random redaction method. Answer: D,F
Explanation:
QUESTION NO: 36
Which option represents a function of Global Data Services (GDS)?
A. performs data replication B. performs database failovers
C. replaces the functionality of Oracle Clusterware and Oracle RAC D. coordinates site failovers
E. works seamlessly with Oracle Site Guard Answer: E
QUESTION NO: 37
Which two statements represent where Oracle Net must reside?
A. Only on the client for traditional client/server applications B. Only on the database server for web-based applications
C. On both the web server and database server for web-based applications
D. On both the client and database server for traditional client/server applications. Answer: B,D
Explanation:
QUESTION NO: 38
When you start up a CDB, which operations are performed automatically and in what order?
a - The instance is started. b - Control files are opened.
c - The root container is opened (redo logs and root data files). d - Seed pluggable database is in READ ONLY mode.
e - Other PDBs are still in MOUNTED mode.
f - Triggers may fire if they exist to open other PDBs.
A. a, b, c, d, e, f B. b, c, a, d, e, f C. c, b, a, d, f, e D. a, b, c, d E. b, c, a, d Answer: D Explanation: QUESTION NO: 39
A. Result Cache Background process (RCBG) B. AQ Coordinator process (QMNC)
C. Change Tracking Writer process (CTWR) D. Listener Registration process (LREG) Answer: D
Reference: http://musingdba.wordpress.com/2013/07/05/new-in-oracle-database-12c-a/
QUESTION NO: 40
Which two statements are true about this common user?
A. SQL> conn c##usr/pwd@pdb1
You are connected to PDB1 successfully.
B. SQL> conn c##usr/pwd@pdb2
You are connected to PDB2 successfully.
C. SQL> conn c##usr/pwd@pdb2
You are unable to create a connection. You first need to sync PDB2 by executing: SQL> conn / as sysdba
SQL>exec DBMS_PDB.SYNC_PDB;
D. SQL> conn c##usr/pwd@pdb2
You are unable to create a connection. You need to create the common user c# #usr explicitly in PDB2 by executing:
SQL>conn system/pwd@pdb2
SQL> CREATE USER c##usrIDENTIFIED BYpwd CONTAINER=CURRENT; Now you are able to connect as common user c##usr to PDB2.
Explanation:
QUESTION NO: 41
Which two statements are true regarding undo data records?
A. They are required to support Flashback features.
B. They are not required if Flashback features are enabled. C. They are retained until the session making the changes ends.
D. Undo records contain copies of data as it appears after a change is made. E. Undo records contain copies of data as it appears before a change is made. Answer: A,E
Reference: http://docs.oracle.com/cd/E11882_01/server.112/e25494/undo.htm#ADMIN11463
QUESTION NO: 42
Your customer has two CDBs: one for Production and one for development. You are asked to create a new development PDB (salesdev) from an existing production PDB (salesprd). Which two options would accomplish this?
A. You copy all the PDBSSEEDdata files from the production CDB into the development CDB and
execute this on the development CDB;
SQL> CREATE PLUGGABLE DATABASE salesdev ADMIN USER salesdm IDENTIFIED by password;
B. You alter the salesprd source database to open in read-only mode, and start cloning the source
database:
SQL> ALTER PLUGGABLE DATABASE salesprd OPEN READ ONLY; SQL> CREATE PLUGGABLE DATABASE salesdev FROM salesprd;
C. You alter the salesprd source database to open in read-only mode:
SQL> ALTER PLUGGABLE DATABASE salesprd OPEN READ ONLY;
In the development CDB, you create a databaselink "PRD" that connects to the root of the source CDB, and start cloning the source PDB:
SQL> CREATE PLUGGABLE DATABASE salesdevFROM salesprd@prd;
D. Connected as the salesprd local DBA, you create an XML using:
SQL> ALTER PLUGGABLE DATABASE salespdb UNPLUG INTO ' /tmp/salesprd-xml' ;
Copy the XML file and all salesprd-related files to the target CDB and start plugging the copy into the development CDB using:
Answer: C,D
Explanation: A: Creating a PDB Using the Seed
You can use the CREATE PLUGGABLE DATABASE statement to create a PDB in a CDB using the files of the seed.
D: Plugging In an Unplugged PDB
To plug in an unplugged PDB, the following prerequisites must be met: * Complete the prerequisites described in "Preparing for PDBs".
* The XML file that describes the PDB must exist in a location that is accessible to the CDB. The USING clause must specify the XML file.
Etc
QUESTION NO: 43
Your database is down. You log in as the SYS user and issue this command: SQL> STARTUP
What happens after the instance is started?
A. Nothing else happens.
B. The database is mounted but not opened. C. The database is mounted and finally opened. D. The database is opened and finally mounted. Answer: C
Reference: http://docs.oracle.com/cd/E17781_01/server.112/e18804/startup.htm
QUESTION NO: 44
Which option represents the steps to add a multiplexed copy of the current control file or to rename a control file in Oracle Database 12c?
a - Shut down the database. b - Restart the database.
d - Edit the CONTROL_FILESparameter in the database initialization parameter file to add the new control file name, or to change the existingcontrol file name.
A. b, c, d B. a, c, d, b C. a, d, b, c D. c, d, b Answer: B Reference: http://docs.oracle.com/cd/E16655_01/server.121/e17636/control.htm#ADMIN11287 QUESTION NO: 45
Your database is open and the listener is running. The DBA stops the listener by using the command:
LSNRCTL> STOP
What happens to the sessions that are currently connected to the database instance?
A. They can perform only queries.
B. They are not affected and continue to function normally.
C. They are terminated and the active transactions are rolled back.
D. They are not allowed to perform any operations till the listener is started. Answer: B
Explanation:
QUESTION NO: 46
Your customer wants all email addresses from the database displayed as [hidden]@company.com. What method of data redaction must you use?
A. full redaction B. partial redaction C. regular expressions D. random redaction
E. no redaction Answer: A Explanation:
QUESTION NO: 47
Your customer is looking for a solution that meets these four needs:
1 - Replicate data from source to target for reporting purposes. 2 -Replicate data from one source to multiple targets.
3 - Replicate data between two databases for instant failover.
4 - Replicate data from multiple sources to a single target for a data warehouse.
Which GoldenGate-supported topology would you recommended?
A. Uni-directional for 1 Peer-to-peer for 2 Bi-directional for 3 Consolidation for 4 B. Peer-to-peer for 1 Broadcast for 2 Bi-directional for 3 Consolidation for 4 C. Uni-directional for 1 Broadcast for 2 Bi-directional for 3 Consolidation for 4 D. Peer-to-peer for 1 Consolidation for 2 Broadcast for 3 Cascading for 4 Answer: C Explanation: QUESTION NO: 48
You execute some DMLcommands, followed by a COMMIT Statement.
Which option correctly describes how the logwriter (LGWR) process takes part in the transaction commit?
A. 1. LGWR writes the commit record to disk.
2. LGWR writes all redo entries from Redo Log Buffer to disk.
B. 1. GWR writes only the transaction's redo entries from Redo Log Buffer to disk.
2. LGWR writes the commit record to disk.
C. 1. LGWR puts the commit record to Redo Log Buffer.
2. IGWR writes all redo entries from Redo Log Buffer to disk.
D. 1. LGWR puts the commit record to Redo Log Buffer.
2. If the activity is high, LGWR waits three seconds for other transactions to commit. 3. LGWR writes all redo log entries from Redo Log Buffer to disk.
E. 1. LGWR puts the commit record to Redo Log Buffer.
2. LGWR signals the database writer (DBW) process to write dirty blocks to disk. 3. LGWR writes all redo entries from Redo Log Buffer to disk.
Answer: C Explanation:
QUESTION NO: 49
Which two statements about PDBs and CDBs are true?
A. There is only one SYSTEM tablespace per CDB. B. There is only one instance per PDB.
C. There is a set of redo log files per PDB.
D. There is only one UNDO tablespace per CDB. E. There is one SYSAUXtablespace per PDB. Answer: D,E
Explanation:
QUESTION NO: 50
You went to create a new CDB foe your customer. Which two statements are true about the seed pluggable database that will reside in the new CDB?
A. You have to copy the seed data files yourself,
statement.
C. The seed pluggable database is not required.
D. The seed pluggable database does not require data files.
E. The seed pluggable database is always kept in READ ONLY mode. F. The seed pluggable database is not a container.
G. The seed pluggable database can be dropped. Answer: B,E
Explanation:
QUESTION NO: 51
You want to clone PDB1 and PDB2 into the same CDB. Which statement is correct?
A. You cannot do this, because you can only clone PDBs into another CDB. B. You can clone only one PDB (either PDB1 or PDB2) into the same CDB. C. Cloning a PDB can use the source files copy method to the target PDB files.
D. Cloning a PDB can use the NOCOPY clause if the target PDB files use the source files. Answer: C
Explanation:
QUESTION NO: 52
Consider 10 scenarios that result in database downtime. Which five of them are considered as planned downtime?
A. addition or removal of nodes, memory, or disks
B. changing configuration parameters, upgrading, or patching Oracle software C. file deletion
D. migrating to cluster architecture E. dropped database object
F. table definition changes
G. runaway processes that consume system resources H. adding table partitioning
I. operating system or storage device / driver failure J. database or application deadlocks
Answer: A,B,D,F,H Explanation:
QUESTION NO: 53
What happens if you execute these SQL statements?
SQL> show con_name
CON_NAME
---CDB$ROOT
SQL> create user 1_freed identified by y container=current;
A. A common user is created in the root container. B. A local user is created in the root container. C. A local user is created in all the PDBs.
D. The second SQL statement fails because a local user cannot be created in the root container. Answer: D
Explanation:
QUESTION NO: 54
A standby database is in mounted state and you are required to perform a failover to the physical standby. Which solution is best suited forthis scenario?
A. ALTER DATABASE RECOVER MANAGED STANDBY DATABASE statement with the FINISH
keyword
B. ALTER DATABASE PREPARE TO SWITCHOVER and ALTER DATABASE COMMIT TO
SWITCHOVER statements
C. ALTER DATABASE RECOVER TO STANDBY DATABASE statement with the FINISH keyword D. D) ALTER DATABASE PREPARE SWITCHOVER and ALTER DATABASE COMMIT TO
SWITCHOVER Statements
Answer: A Explanation:
QUESTION NO: 55
Which two statements are true about transactions in Oracle Database 12c?
A. Multiple transactions can use the same undo segment.
B. A transaction is assigned an undo segment when it is started.
C. Multiple transactions cannot share the same extent in an undo tablespace.
D. If all the segments in an undo tablespace are used, transactions use system undo segments to
store undo data.
Answer: A,B Explanation:
QUESTION NO: 56
Which two statements about Data Recovery Advisor are true?
A. Data Recovery Advisor can be used to diagnose and repair data corruptions in non-CDBs. B. Data Recovery Advisor cannot be used to diagnose and repair data corruptions in the root of a
CDB.
C. Data Recovery Advisor can be used to diagnose and repair data corruptions in PDBs. D. You can use the ADVISE FAILURE command to display repair options after running LIST
FAILURE in an RMAN session.
Answer: A,D
Explanation: A (not B): In the current release, Data Recovery Advisor can only be used to
diagnose and repair data corruptions in non-CDBs and the root of a multitenant container database (CDB).
Not C: Data Recovery Advisor is not supported for pluggable databases (PDBs).
D: A failure is detected either automatically by the database or through a manual check such as the VALIDATE command. You can use the LIST FAILURE command to view problem statements for failures and the effect of these failures on database operations. Each failure is uniquely
identified by a failure number. In the same RMAN session, you can then use the ADVISE FAILURE command to view repair options, which typically include both automated and manual options.
Reference: Oracle Database Backup and Recovery User's Guide, 12c, Diagnosing and Repairing Failures with Data Recovery Advisor
QUESTION NO: 57
Which two statements about multitenant architecture are true?
A. It ensures full backward compatibility with non-CDBs. B. It fully operates with RAC.
C. It is integrated with Enterprise Manager, but not with the Resource Manager. D. It allows central management and administration of single databases.
Answer: C,D Explanation:
QUESTION NO: 58
You are installing OracleDatabase 12c on a machine. When you run the installer; Oracle Universal installer (OUI) shows a message that says one of the product-specific prerequisite checks has failed:
Checking available swap space requirements... Expected result: 1512MB
Actual Result: 1018MB
Check complete. The overall result of this check is: failed «« Problem: The system does not have the required swap space.
What happens to the installation in this situation?
A. It can be continued.
B. It resizes the swap space automatically when you proceed further.
C. It can be continued, but the instance cannot be started without increasing swap space. D. It shows a message saying one or more prerequisite checks have failed and the installation
aborts.
Answer: A
QUESTION NO: 59
Examine the command below:
LSNRCTL> SERVICES LISTENER2
Connecting to (DESCRIPTION=(ADDRESS= (PROTOCOL=TCP) (HOST=estb. us. abc.com) (PORT=1525)))
Services Summary. . .
Service "orcl.oracle.com" has 1 instance(s).
Instance "oracle", status UNKNOWN, has 1 handler(s) for this service... Handler(s):
"DEDICATED" established:2 refused:0 LOCAL SERVER The command completed successfully
Which two statements are true about LISTENER2?
A. The ORCL instance is registered dynamically with the listener. B. The ORCL instance is registered statically in the listener.ora file.
C. The number of current client connections handled by the service handler is two. D. The total number of client connections handled so far by the service handler is two. Answer: B,D
Explanation:
QUESTION NO: 60
Which three statements are true about a database instance that has mounted a database but has not opened it?
A. System administrators and users with the CREATE SESSION system privilege may connect to
the instance.
B. Data files are open in read-only mode. C. A control file is open.
D. System Global Area (SGA) is allocated and background processes are started. E. An alert log and trace files are open.
F. Instance recovery is performed for the database. Answer: C,D,E
QUESTION NO: 61
View the current parameter settings shown in the output below.
NAMETYPEVALUE db_file_multiblock_read_count integer 107 ddl_lock_timeout integer 60 Distributed_lock_timeout integer 60 dml_locks integer 748 lock_sga boolean FALSE enab1e_dd1_1ogging boolean FALSE resumable_timeout integer 0
SQL> CREATE TABLE emp (empno NUMBER(3),
enamo VARCHAR2(20), sal NUMBER (8, 2));
SQL> INSERT INTO emp (empno, ename) VALUES(1, 'JAMES');
At this moment, a second user also logs in to the hrschema and issues the following command:
SQL> ALTER TABLE emp MODIFY salNUMBER(10, 2);
What happens in this scenario?
A. The second user's session immediately produces a "resource busy" error. B. The second user's command executes successfully.
C. The second user's session waits for a time before producing a "resource busy" error. D. A deadlock is created.
Answer: A Explanation:
QUESTION NO: 62
Your customer wants to migrate their production database from Oracle Database 10gon AIX to Oracle Database 12con Solaris, and is concerned about the downtime. Which Oracle solution would you recommend?
A. Active Data Guard B. Oracle GoldenGate
C. Oracle Real Application Clusters D. Oracle Transportable Tablespaces E. Oracle Cloud Platform as a Service Answer: B
QUESTION NO: 63
An Oracle instance is a combination of______.
A. database files and parameter file (initialization parameter file or server parameter file) B. System Global Area (SGA) and background processes
C. a listener process, server processes, and background processes
D. System Global Area (SGA), server processes, and background processes E. database files, System Global Area (SGA), and background processes Answer: B
Reference: http://docs.oracle.com/cd/A57673_01/DOC/server/doc/SCN73/ch9.htm#o instance
QUESTION NO: 64
You have two database servers EMP and EXP. A user of the database from the EXP server wants to extract some information from the database in the EMP server for cross-verification. Which schema object enables the user to access the information from the remote database?
A. cluster B. database link C. mapping table D. materialized view Answer: B Reference: http://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_5005.htm QUESTION NO: 65
Which two are client-side components of Oracle Data Guard Broker?
A. Oracle Enterprise Manager Cloud Control B. Oracle Data Guard monitor
C. Oracle Data Guard command-line interface (DGMGRL) D. Oracle Data Guard Broker Manager
Answer: A,C
Reference: http://books.google.com.pk/books?id=qK-biQrYzAUC&pg=PA55&lpg=PA55&dq=client-side+components+of+Oracle+Data+Guard+Broker&source=bl&ots=hHTjqx70n7&sig=1SkypkiGuU
R1uPpy0QLGFPqy4mw&hl=en&sa=X&ei=qsT7Us7VDMWN7Aa-
vYCgCg&ved=0CEQQ6AEwAw#v=onepage&q=client-side%20components%20of%20Oracle%20Data%20Guard%20Broker&f=false
QUESTION NO: 66
Your customer needs server availability that provides uninterrupted access to database services, handling any unexpected failure of one or more machines hosting the database server, due to a hardware or software fault. Which product should your customer use?
A. Oracle Data Guard B. Oracle Streams
C. Oracle Real Application Clusters D. Oracle GoldenGate
Answer: C
Reference: http://www.oracle.com/technetwork/database/availability/maximum-availability-wp-12c-1896116.pdf (page 5, Server HA: Oracle Real Application Clusters)
QUESTION NO: 67
Your customer has three data centers in three different locations, location A has their production database running on Oracle Database 12c. They want to replicate the data from location A to location B. which is 50 miles away and is used for disaster protection and database rolling
upgrades. They also want to create a replica database at location C, which must be open in read-write mode, while synchronizing with the primary database.
Which two solutions would you recommend to your customer?
A. Oracle GoldenGate
B. Oracle Advanced Replication C. Oracle Active Data Guard D. Oracle Streams
Answer: A,C Explanation:
QUESTION NO: 68
Your database instance is running. db01 is a net service name. You issue a connection request by using the command:
SQL> CONNECT scott/tiger@db01
Which component receives the request and establishes the appropriate connection?
A. listener B. user process C. service name D. server process Answer: A Reference: http://docs.oracle.com/cd/E11882_01/network.112/e41945/trouble.htm#NETAG394 QUESTION NO: 69
Which statement about Online Move Data file is true?
A. Moving a data file online prevents DML operations on segments stored in the data file.
B. Flashing back a database to a point in time before a data file had been renamed online retains
the new name.
C. Moving a data file online can be performed if the data file is in OFFLINE mode.
D. Moving a data file online cannot be performed if the data file is under BEGIN BACKUP. Answer: B
Explanation:
QUESTION NO: 70
You execute the following command:
SQL> ALTER USER skd ACCOUNT LOCK;
A. The SKD user cannot log in to the database instance.
B. The objects owned by the SKD user are not accessible to any user.
C. Other users can access objects owned by the SKD user, to which they have access.
D. The SKD user's password expires and the user is forced to change the password at the next
login.
Answer: A,C Explanation:
QUESTION NO: 71
Examine the statements:
SQL> CREATE TABLESPACE MYTBS DATAFILE '/disk1/mytbs_l.dbf ' SIZE 10M;
SQL> CREATE TABLE mytab (id NUMBER, descr VARCHAR2 (100) ) PARTITION BY RANGE(id) (
partition pi values loss than (100000) tablespacemytbs storage (initial lm), partition p2 values less than (MAXVALUE) tablespacemytbs storage (initial 1m) );
When inserting data, you get the error:
ORA-01688: unable to extend table SYS.MYTAB partition P2 by 128 in tablespace MYTBS
Which three operations would allow you to insert data without getting the error message?
A. Extend the logical volume by 10 MB where the data files are stored;
# lvextend -L+10M /diskl
B. Add a data file:
SQL>ALTER TABLESPACE MYTBS ADD DATAFILE ' /disk1/mytbs_2 .dbf SIZE 10M;
C. Move a partition to another tablespace:
SQL> CREATE TABLESPACE ADDITIONAL_TBS DATAFILE '/disk1/additional_tbs_1 .dbf' SIZE 10M;
SQL> ALTER TABLE MYTAB MOVE PARTITION P2 TABLESPACE ADDlTIONAL_TBS;
D. Resize the existing data file:
SQL> ALTER DATABASE DATAFILE '/diskl/mytbs_l .dbf' RESIZE 20M; E) Remove a data file:
Answer: B,C,D Explanation:
QUESTION NO: 72
Which two statements about Automatic Data Optimization (ADO) are true?
A. ADO policies can automatically compress data when it qualifies. B. ADO policies can automatically move segments when necessary.
C. ADO is not dependent on Heat Map, and works even if Heat Map is disabled. D. You cannot compress at block level, but you can compress at segment level. E. You can compress at row level only for QUERY LOW.
Answer: A,B Explanation:
QUESTION NO: 73
Which statement about Oracle patches is false?
A. Interim patches, also known as "one-off" patches, are created to provide a specific fix between
the releases of patch sets.
B. Security Patch Update (SPU) is the primary means of releasing security fixes for Oracle
products. SPUs are cumulative with respect to prior SPUs and generally contain only security fixes.
C. Patch Set Update (PSU) is a collection of proactive, stabilizing, cumulative patches for a
particular product version (base release or patch set). PSUs are cumulative and include all the security fixes from CPU patches, plus additional fixes.
D. Patch Set is the main way in which Oracle provides bug fixes in between releases. Oracle
bundles a number of fixes, tests them thoroughly together, and packages, then together for easy download and installation.
E. Terminal Patch Set is an unsupported patch set by Oracle Lifetime Support policies. Answer: E
Explanation: Starting with Oracle Database version 12.1.0.1, Oracle only provides Patch Set
Updates (PSU) to meet the Critical Patch Update (CPU) program requirements for security patching. Security Patch Updates (SPU) will no longer be available.
QUESTION NO: 74
Which three statements represent the difference between a container database (CDB)and a non-container database?
A. A container database has exactly one seed PDB, and a non-container database has no seed
PDB.
B. In a newly created non-CDB that does not yet contain user data, the data dictionary contains
only system metadata. When application users create their own objects, this metadata is mixed with the system metadata. In a CDB, the data dictionary metadata is split between the root and the PDBs. The data dictionary in the PDB contains pointers to the data dictionary in the root.
C. New views are introduced. Next to DBA_views, AIL_-views, and USER_-views, there are
CDB_-views. Both CDB and non-CDB databases can access this information.
D. You are allowed to create only a single HR user in a non-CDB database. This restriction is
identical for a CDB database.
E. Every PDB in a CDB has its own control file. A non-CDB, which has no containers, needs only
one control file.
Answer: A,B,C Explanation:
QUESTION NO: 75
The session of user SCOTT receives the following error after executing an UPDATE command on the EMP table:
ERROR at line 1:
ORA-00060: deadlock detected while waiting for resource
You find out that a session opened by user JIM has a transaction that caused the deadlock. Which two statements are true about SCOTT's session in this scenario?
A. The session is terminated after receiving the error and JIM can continue with his transaction. B. SCOTT should perform a COMMIT or ROLLBACK to allow JIM to continue with his transaction. C. The session is rolled back after receiving the error and JIM can continue with his transaction. D. SCOTT has to re-execute the last command in the transaction after he commits the transaction. Answer: B,D
QUESTION NO: 76
Examine the command:
SQL> CREATE TABLE orders(oid NUMBER (6) PRIMARY KEY, odato DATE, ccode NUMBER (6), oamt NUMBER (10, 2)) TABLESPACE users ;
Which two statements are true about the execution of the command?
A. A CHECK constraint is created on the OID column. B. A NOT NULL constraint is created on the OID column.
C. The ORDERS table is the only object created in the USERS tablespace. D. The ORDERS table and a unique index are created in the USERS tablespace.
E. The ORDERS table is created in the USERS tablespace and a unique index is created on the
OID column in the SYSTEM tablespace.
Answer: B,D
Explanation: B: A NOT NULL constraint is put on the primary key.
D:
* To enable a unique or primary key constraint, you must have the privileges necessary to create an index on the table. You need these privileges because Oracle Database creates an index on the columns of the unique or primary key in the schema containing the table.
* TABLESPACE Specify the tablespace in which Oracle Database creates the table, object table OIDINDEX, partition, LOB data segment, LOB index segment, or index-organized table overflow data segment. If you omit TABLESPACE, then the database creates that item in the default tablespace of the owner of the schema containing the table.
Reference: Oracle Database SQL Language Reference 12c , CREATE TABLE
QUESTION NO: 77
Which three options correctly match environment variables with their specific functionality?
A. ORACLE_SID specifies the instance name.
B. ORACLE_SID specifies the global database name.
C. ORACLE_BASE specifies the root of the Oracle Database directory tree in all platforms.
D. ORACLE_BASE specifies the root of the Oracle Database directory tree only in UNIX and Linux
platforms.
E. ORACLE_HOME specifies the directory containing the Oracle software executables and
network files.
not the network files.
Answer: A,C,E Explanation:
QUESTION NO: 78
Identify the correct order of consolidation density.
A. multitenant< schema consolidation< dedicated database< VMs B. schema consolidation< VMs< dedicated databases< multitenant C. dedicated databases< VMs< schema consolidation< multitenant D. VMs< dedicated databases< schema consolidation< multitenant Answer: D
Explanation:
QUESTION NO: 79
Examine the commands:
SQL> CONNECT sys@CDBl AS SYSDBA $QL>STARTUP MOUNT
SQL> ALTER DATABASE cdbl MOUNT;
Which four options represent what happens when these commands are executed?
A. The instance is started.
B. The CDB control files are opened for the instance. C. The root is mounted.
D. The root is opened. E. The PDBs are mounted.
F. The PDBs are mounted, and the seed is opened in READ ONLY mode.
G. The PDBs are mounted, and opened in READ WRITE mode, while the seed is opened In
READ ONLY mode.
Answer: A,B,C,E Explanation:
QUESTION NO: 80
Which two statements about switchover and failover are true?
A. A snapshot standby can be the target of a switchover or fast-start failover operation. B. Neither a switchover nor a failover is possible to a far sync instance.
C. For fast-start failover, you must preselect the target standby database that will be used. D. You can activate a standby database to test whether it is being updated correctly. Answer: B,C
Reference: http://docs.oracle.com/cd/E16655_01/server.121/e17641/sofo.htm#DGBKR3404 http://docs.oracle.com/cd/E11882_01/server.112/e17023/sofo.htm#DGBKR3310
QUESTION NO: 81
Identify three types of important statistics collection that you can disable in Oracle Database 12c by setting the STATISTIS_LEVEL parameter to BASIC.
A. Oracle Database alert.log file B. object-level statistics
C. Automatic SGA Memory Management D. Oracle Database Trace files
E. all server-generated alerts Answer: B,C,E
Explanation:
QUESTION NO: 82
You need to recover a database running In NOARCHIVELOG mode. Which two statements are true in this scenario?
A. You can perform complete recovery by using the command:
RESTORE DATABASE
FROM TAG“consistent_whole_backup”; RECOVER DATABASE;
B. You can perform incomplete recovery by using the command:
RESTORE DATABASE;
FROM TAG "consistent_whole_backup"; RECOVER DATABASE NOREDO;
C. Only consistent backups can be used for restoring a database in NOARCHIVELOG mode. D. Media recovery is possible in most cases.
Answer: B,C
Reference: http://docs.oracle.com/cd/B19306_01/backup.102/b14191/rcmrecov.htm#CACGEAEE
QUESTION NO: 83
Which statement about a server parameter file (SPFILE) is false?
A. An SPFILE is a binary file that cannot be edited by using a text editor.
B. You can create an SPFILE from an existing text initialization parameter file or from memory. C. You can use the SHOW PARAMETERS command to display the values of initialization
parameters in an SPFILE.
D. The instance first searches for an SPFILE named spfileoRACLE_SID.ora and, if this is not
found. It searches for spfile.ora.
Answer: D
Explanation: Not A, not B: SPFILE is a text file that can be created from a file or from scratch.
Not C: This shows database was started by spfile SQL> show parameter spfile;
NAME TYPE VALUE
---- ---- ---
spfile string /root/apps/oracle/10g/dbs/spfile<DB_NAME>.ora No values returned means its started by pfile.
QUESTION NO: 84
Which statement about the Queryable Patch inventory feature is false?
A. It is used to retrieve installed patch information from a SQL prompt.
sent to the access drivers.
C. DBMS_QOPATCH provides a PL/SQL or SQL interface to view the database patches installed. D. It works in an Oracle database instance that is mounted. Therefore, it works in ASM instances
and DG instances.
Answer: D
Explanation: * New in Oracle 12c is queryable Opatch. Oracle offers a set of tables and a
PL/SQL packages to query the Oracle Inventory.Prior to Oracle 12c, it was not easy to List Oracle patches. Now from Oracle 12c and beyond, you can use the DBMS_QOPATCH package to list all patches.
* Using DBMS_QOPATCH feature, users can do: Query what patches are installed from SQL*Plus.
Write wrapper programs to create reports and do validation checks across multiple environments. Check patches installed on Oracle RAC nodes from a single location instead of having to log onto each one in turn.
QUESTION NO: 85 A. Option A B. Option B C. Option C D. Option D E. Option E Answer: A,C,E
Explanation:
QUESTION NO: 86
Identify two types of solutions in which you would need to use Active Data Guard and Golden Gate together.
A. a solution that provides zero-data-loss protection at any distance without impacting database
performance
B. a solution for disaster protection and database rolling upgrades for a mission-critical OLTP
database, where you also want to extract data from a data guard primary database for ETL update o' an enterprise data warehouse
C. a solution requiring minimal planned downtime and risk, using standby first patching, database
rolling upgrades, and select platform migrations
D. a solution that helps with integrated automatic database and client failover between source and
target, where you also need to establish advanced replication (such as multi master and bidirectional replication and data transformations)
Answer: B,C
Reference: http://www.oracle.com/technetwork/database/availability/active-data-guard-wp-12c-1896127.pdf (page 16, last two bulleted points)
QUESTION NO: 87
You create a CDB with four containers: the loot, the seed, and two pluggable databases PDB1 and PDB2. Which four items can reside In PDB1, but not in the root?
A. shared UNDO and default database temporary tablespace B. Oracle-supplied metadata
C. shared Oracle-supplied data
D. CDB views providing information across PDBs E. application tablespaces
F. local temporary tablespaces G. local users and local roles H. non-shared local metadata Answer: E,F,G,H
QUESTION NO: 88
Which two statements are true when you execute an invoker's rights procedure?
A. The owner must have the INHERIT PRIVILEGES object privilege on the invoking user, or the
INHERIT ANY PRIVILEGES privilege.
B. Invoking users can control who can access their privileges when they run an invoker's rights
procedure.
C. The calling user must be granted the INHERIT PRIVILEGES object privilege on the user owner
of the procedure.
D. The calling user must grant the INHERIT PRIVILEGES object privilege on the user owner of the
procedure.
Answer: A,B
Reference: http://docs.oracle.com/cd/E16655_01/network.121/e17607/dr_ir.htm#DBSEG661
QUESTION NO: 89
Which parameter can be changed by explicitly re-creating the control file or by using the DBNEWID utility? A. db_name B. maxdatafiles C. control_files D. instance_name Answer: A Reference: http://docs.oracle.com/cd/B10501_01/server.920/a96652/ch14.htm QUESTION NO: 90
Several tables are accidentally deleted from a PDB. Which database would you immediately connect to, and as which user, to recover these tables?
A. the CDB as the ROOT user B. the CDB as the CDBADMIN user
C. the PDB as the ROOT user D. the PDB as the PDB Admin user Answer: D
Explanation:
QUESTION NO: 91
Identify two solutions that Oracle provides for patch conflict.
A. merge patch B. combine patch C. overlay patch D. dual patch E. super patch Answer: A,C Explanation: QUESTION NO: 92
You are in the middle of transaction, updating a table. The machine on which the database is running reboots because of a power outage. This causes a database instance failure.
Which statement is true in this situation?
A. The online redo log files and archived redo log files are required to accomplish a recovery. B. The uncommitted transaction is committed at the next startup of the database instance.
C. The uncommitted transaction is rolled back automatically at the next opening of the database. D. The DBA has to perform a recovery on the database to recover the uncommitted transaction. Answer: C
Explanation:
QUESTION NO: 93
A. non-cumulative B. multi-version C. proactive D. stabilizing E. cumulative Answer: C,D,E Explanation: QUESTION NO: 94
For which use case would you use a rolling upgrade with the Oracle Active Data Guard feature?
A. when upgrading from Oracle Database 12c to the first patch set of Oracle Database 12c B. when upgrading from Oracle Database 10g to Oracle Database 12c
C. when upgrading from Oracle Database 11g to Oracle Database 12c
D. when upgrading from any previous version of Oracle Database to Oracle Database 12c Answer: A
Explanation: You will be able to use this feature to perform database version upgrades starting
with the first patchset of Oracle Database 12c (that is, you cannot use it to upgrade from any version earlier than the first Oracle Database 12c patchset). This means that the manual Transient Logical Standby upgrade procedure must still be used when upgrading from Oracle Database 11g to Oracle Database12c, or when upgrading from the initial Oracle Database 12c release to the first patchset of Oracle Database 12c.
Reference: Oracle Data Guard Concepts and Administration, 12c, Using DBMS_ROLLING to Perform a Rolling Upgrade
QUESTION NO: 95
Which two statements about multi section backup are true?
A. It is available only for full backups.
B. It supports incremental backups and image copies.
C. Backup for each data file is divided into sections and is backed up in parallel. However, for
image copies, sections are backed up sequentially.
Answer: B,D
Explanation: B (Not A): Starting with Oracle Database 12c Release 1 (12.1), RMAN supports
multisection incremental backups
D (not C): Starting with Oracle Database 12c Release 1 (12.1), you can create multisection full backups that are stored as image copies. While the image copy is being created, multiple channels are used to write files sections. However, the output of this operation is one copy for each data file.
Reference: Specifying Multisection Incremental Backups Making Multisection Backups Using Image Copies
QUESTION NO: 96
Which tablespace contains the data dictionary, being automatically created at database creation?
A. USERS B. TEMP C. SYSAUX D. SYSTEM E. EXAMPLE Answer: D Reference: http://docs.oracle.com/cd/B10500_01/server.920/a96524/c04space.htm QUESTION NO: 97
Which three tasks can you perform in Database Express?
A. View performance and status information about the database instance. B. Start up the database.
C. Shut down the database. D. Create database structures. E. Manage users and security. Answer: A,D,E
QUESTION NO: 98
Which two statements are true about the B-tree Index?
A. The leaf blocks in the index are doubly linked. B. The leaf node stores a bitmap for each key value.
C. Rows with a NULL value in key columns also have entries in the Index.
D. The deletion of a row from the table causes a logical deletion in the index leaf block and the
space becomes available for a new leaf entry.
Answer: A,B
Reference: http://www.siue.edu/~dbock/cmis565/module12-indexes.htm
QUESTION NO: 99
Which two statements are true about listeners?
A. Listeners use only the TCP/IP protocol.
B. Multiple listener processes can run simultaneously on a host.
C. Multiple database instances can be registered with a single listener, D. Listener-related errors can be traced only at the administrative level.
E. Only one database instance can be registered with a single listener at any time. Answer: B,C
Explanation: B: A network may contain multiple local and remote listeners.
E: Oracle Net Listener is a separate process that runs on the database server. It receives incoming client connection requests and manages the traffic of these requests to the database server.
Incorrect:
Not A: Because the configuration parameters have default values, it is possible to start and use a listener with no configuration. This default listener has a name of LISTENER, supports no services on startup, and listens on the following TCP/IP protocol address:
QUESTION NO: 100
You want to start a global service on your database. Which three conditions must be met?
A. The database is open and registered with a global service manager. B. The service has been disabled on that database.
C. The database role is different from the role attribute of the service.
D. The replication lag on the database does not exceed the maximum value specified for the
service.
E. The service has reached its cardinality defined by the number of preferred databases. F. No other database in the pool is a better candidate for starting the service.
Answer: A,B,F
Explanation: To provide global services, a database must be added to a Global Data Services
pool.
The valid node checking for registration (VNCR) feature provides the ability to configure and dynamically update a set of IP addresses, host names, or subnets from which registration
requests are allowed by the global service manager. Database instance registration with a global service manager succeeds only when the request originates from a valid node.
* Starting a Global Service
The gdsctl start service command is used to start an existing service on the Global Data Services pool databases.
GDSCTL>start service -service emp_report1 -gdspool hr
If the -role parameter is specified for the service, the service only starts on the databases in which the role matches the specified value (not C). If the -lag parameter is specified for the service, the service only starts on the databases for which replication lag does not exceed the specified value (D). Unless -preferred_all is specified for the service, the service only starts on the databases that are listed as preferred for the service.
QUESTION NO: 101
What must you do to an application for it to take advantage of partitioning?
