Download Oracle.1z0-060.CertKey.2018-08-14.111q.vcex

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Exam Upgrade to Oracle Database 12c
Number 1z0-060
File Name Oracle.1z0-060.CertKey.2018-08-14.111q.vcex
Size 1 MB
Posted Aug 14, 2018
Download Oracle.1z0-060.CertKey.2018-08-14.111q.vcex

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Demo Questions

Question 1

What are three purposes of the RMAN “FROM” clause?


  1. to support PUSH-based active database duplication
  2. to support synchronization of a standby database with the primary database in a Data environment
  3. to support PULL-based active database duplication
  4. to support file restores over the network in a Data Guard environment
  5. to support file recovery over the network in a Data Guard environment
Correct answer: BDE
Explanation:
* With a control file autobackup, RMAN can recover the database even if the current control file, recovery catalog, and server parameter file are inaccessible. * RMAN uses a recovery catalog to track filenames for all database files in a Data Guard environment. A recovery catalog is a database schema used by RMAN to store metadata about one or more Oracle databases. The catalog also records where the online redo logs, standby redo logs, tempfiles, archived redo logs, backup sets, and image copies are created.
* With a control file autobackup, RMAN can recover the database even if the current control file, recovery catalog, and server parameter file are inaccessible. 
* RMAN uses a recovery catalog to track filenames for all database files in a Data Guard environment. A recovery catalog is a database schema used by RMAN to store metadata about one or more Oracle databases. The catalog also records where the online redo logs, standby redo logs, tempfiles, archived redo logs, backup sets, and image copies are created.



Question 2

You notice that the performance of your production 24/7 Oracle 12c database significantly degraded. Sometimes you are not able to connect to the instance because it hangs. You do not want to restart the database instance. 
How can you detect the cause of the degraded performance?


  1. Enable Memory Access Mode, which reads performance data from SGA.
  2. Use emergency monitoring to fetch data directly from SGA analysis.
  3. Run Automatic Database Diagnostic Monitor (ADDM) to fetch information from the latest Automatic Workload Repository (AWR) snapshots.
  4. Use Active Session History (ASH) data and hang analysis in regular performance monitoring.
  5. Run ADDM in diagnostic mode.
Correct answer: B



Question 3

You plan to use the In-Database Archiving feature of Oracle Database 12c, and store rows that are inactive for over three months, in Hybrid Columnar Compressed (HCC) format. 
Which three storage options support the use of HCC? (Choose three.)


  1. ASM disk groups with ASM disks consisting of Exadata Grid Disks.
  2. ASM disk groups with ASM disks consisting of LUNs on any Storage Area Network array
  3. ASM disk groups with ASM disks consisting of any zero-padded NFS-mounted files
  4. Database files stored in ZFS and accessed using conventional NFS mounts.
  5. Database files stored in ZFS and accessed using the Oracle Direct NFS feature
  6. Database files stored in any file system and accessed using the Oracle Direct NFS feature
  7. ASM disk groups with ASM disks consisting of LUNs on Pillar Axiom Storage arrays
Correct answer: AEG
Explanation:
HCC requires the use of Oracle Storage – Exadata (A), Pillar Axiom (G) or Sun ZFS Storage Appliance (ZFSSA). Note:Hybrid Columnar Compression, initially only available on Exadata, has been extended to support Pillar Axiom and Sun ZFS Storage Appliance (ZFSSA) storage when used with Oracle Database Enterprise Edition 11.2.0.3 and above Oracle offers the ability to manage NFS using a feature called Oracle Direct NFS (dNFS). Oracle Direct NFS implements NFS V3 protocol within the Oracle database kernel itself. Oracle Direct NFS client overcomes many of the challenges associated with using NFS with the Oracle Database with simple configuration, better performance than traditional NFS clients, and offers consistent configuration across platforms.
HCC requires the use of Oracle Storage – Exadata (A), Pillar Axiom (G) or Sun ZFS Storage Appliance (ZFSSA). 
Note:
  • Hybrid Columnar Compression, initially only available on Exadata, has been extended to support Pillar Axiom and Sun ZFS Storage Appliance (ZFSSA) storage when used with Oracle Database Enterprise Edition 11.2.0.3 and above 
  • Oracle offers the ability to manage NFS using a feature called Oracle Direct NFS (dNFS). Oracle Direct NFS implements NFS V3 protocol within the Oracle database kernel itself. Oracle Direct NFS client overcomes many of the challenges associated with using NFS with the Oracle Database with simple configuration, better performance than traditional NFS clients, and offers consistent configuration across platforms.



Question 4

In your multitenant container database (CDB) containing pluggable databases (PDB), users complain about performance degradation. 
How does real-time Automatic Database Diagnostic Monitor (ADDM) check performance degradation and provide solutions?


  1. It collects data from SGA and compares it with a preserved snapshot.
  2. It collects data from SGA, analyzes it, and provides a report.
  3. It collects data from SGA and compares it with the latest snapshot.
  4. It collects data from both SGA and PGA, analyzes it, and provides a report.
Correct answer: B
Explanation:
Note:The multitenant architecture enables an Oracle database to function as a multitenant container database (CDB) that includes zero, one, or many customer-created pluggable databases (PDBs). 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. The System Global Area (SGA) is a group of shared memory areas that are dedicated to an Oracle “instance” (an instance is your database programs and RAM). The PGA (Program or Process Global Area) is a memory area (RAM) that stores data and control information for a single process.
Note:
  • The multitenant architecture enables an Oracle database to function as a multitenant container database (CDB) that includes zero, one, or many customer-created pluggable databases (PDBs). 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. 
  • The System Global Area (SGA) is a group of shared memory areas that are dedicated to an Oracle “instance” (an instance is your database programs and RAM). 
  • The PGA (Program or Process Global Area) is a memory area (RAM) that stores data and control information for a single process.



Question 5

The tnsnames.ora file has an entry for the service alias ORCL as follows:
  
The TNSPING command executes successfully when tested with ORCL; however, from the same OS user session, you are not able to connect to the database instance with the following command:
SQL > CONNECT scott/tiger@orcl 
What could be the reason for this?


  1. The listener is not running on the database node.
  2. The TNS_ADMIN environment variable is set to the wrong value.
  3. The orcl.oracle.com database service is not registered with the listener.
  4. The DEFAULT_DOMAIN parameter is set to the wrong value in the sqlnet.ora file.
  5. The listener is running on a different port.
Correct answer: C
Explanation:
Service registration enables the listener to determine whether a database service and its service handlers are available. A service handler is a dedicated server process or dispatcher that acts as a connection point to a database. During registration, the LREG process provides the listener with the instance name, database service names, and the type and addresses of service handlers. This information enables the listener to start a service handler when a client request arrives.
Service registration enables the listener to determine whether a database service and its service handlers are available. A service handler is a dedicated server process or dispatcher that acts as a connection point to a database. During registration, the LREG process provides the listener with the instance name, database service names, and the type and addresses of service handlers. This information enables the listener to start a service handler when a client request arrives.



Question 6

Examine the following steps of privilege analysis for checking and revoking excessive, unused privileges granted to users:
  1. Create a policy to capture the privilege used by a user for privilege analysis. 
  2. Generate a report with the data captured for a specified privilege capture. 
  3. Start analyzing the data captured by the policy. 
  4. Revoke the unused privileges. 
  5. Compare the used and unused privileges’ lists. 
  6. Stop analyzing the data. 
Identify the correct sequence of steps.


  1. 1, 3, 5, 6, 2, 4
  2. 1, 3, 6, 2, 5, 4
  3. 1, 3, 2, 5, 6, 4
  4. 1, 3, 2, 5, 6, 4
  5. 1, 3, 5, 2, 6, 4
Correct answer: B
Explanation:
1. Create a policy to capture the privilege used by a user for privilege analysis. 3. Start analyzing the data captured by the policy. 6. Stop analyzing the data. 2. Generate a report with the data captured for a specified privilege capture. 5. Compare the used and unused privileges’ lists. 4. Revoke the unused privileges.
1. Create a policy to capture the privilege used by a user for privilege analysis. 
3. Start analyzing the data captured by the policy. 
6. Stop analyzing the data. 
2. Generate a report with the data captured for a specified privilege capture. 
5. Compare the used and unused privileges’ lists. 
4. Revoke the unused privileges.



Question 7

Your database is running an ARCHIVELOG mode. 
The following parameters are set in your database instance:
  
Which statement is true about the archived redo log files?


  1. They are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.
  2. They are created only in the Fast Recovery Area because configuring the DB_RECOVERY_FILE_DEST and DB_RECOVERY_FILE_DEST_SIZE parameters automatically enables flashback for the database.
  3. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.
  4. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the location specified by the DB_RECOVERY_FILE_DEST parameter.
Correct answer: A
Explanation:
You can choose to archive redo logs to a single destination or to multiple destinations. Destinations can be local—within the local file system or an Oracle Automatic Storage Management (Oracle ASM) disk group—or remote (on a standby database). When you archive to multiple destinations, a copy of each filled redo log file is written to each destination. These redundant copies help ensure that archived logs are always available in the event of a failure at one of the destinations. To archive to only a single destination, specify that destination using the LOG_ARCHIVE_DEST and LOG_ARCHIVE_DUPLEX_DEST initialization parameters. ARCHIVE_DEST initialization parameter. To archive to multiple destinations, you can choose to archive to two or more locations using the LOG_ARCHIVE_DEST_n initialization parameters, or to archive only to a primary and secondary destination using the LOG_ARCHIVE_DEST and LOG_ARCHIVE_DUPLEX_DEST initialization parameters.
You can choose to archive redo logs to a single destination or to multiple destinations. 
Destinations can be local—within the local file system or an Oracle Automatic Storage Management (Oracle ASM) disk group—or remote (on a standby database). When you archive to multiple destinations, a copy of each filled redo log file is written to each destination. These redundant copies help ensure that archived logs are always available in the event of a failure at one of the destinations. 
To archive to only a single destination, specify that destination using the LOG_ARCHIVE_DEST and LOG_ARCHIVE_DUPLEX_DEST initialization parameters. 
ARCHIVE_DEST initialization parameter. To archive to multiple destinations, you can choose to archive to two or more locations using the LOG_ARCHIVE_DEST_n initialization parameters, or to archive only to a primary and secondary destination using the LOG_ARCHIVE_DEST and LOG_ARCHIVE_DUPLEX_DEST initialization parameters.



Question 8

Your multitenant container database (CDB) is running in ARCHIVELOG mode. You connect to the CDB RMAN. 
Examine the following command and its output:
  
You execute the following command:
RMAN > BACKUP DATABASE PLUS ARCHIVELOG; 
Which data files will be backed up?


  1. Data files that belong to only the root container
  2. Data files that belong to the root container and all the pluggable databases (PDBs)
  3. Data files that belong to only the root container and PDB$SEED
  4. Data files that belong to the root container and all the PDBs excluding PDB$SEED
Correct answer: B
Explanation:
Backing Up a Whole CDB Backing up a whole CDB is similar to backing up a non-CDB. When you back up a whole CDB, RMAN backs up the root, all the PDBs, and the archived redo logs. You can then recover either the whole CDB, the root only, or one or more PDBs from the CDB backup. Note:You can back up and recover a whole CDB, the root only, or one or more PDBs. Backing Up Archived Redo Logs with RMAN Archived redo logs are the key to successful media recovery. Back them up regularly. You can back up logs with BACKUP ARCHIVELOG, or back up logs while backing up datafiles and control files by specifying BACKUP ... PLUS ARCHIVELOG.
Backing Up a Whole CDB 
Backing up a whole CDB is similar to backing up a non-CDB. When you back up a whole CDB, RMAN backs up the root, all the PDBs, and the archived redo logs. You can then recover either the whole CDB, the root only, or one or more PDBs from the CDB backup. 
Note:
  • You can back up and recover a whole CDB, the root only, or one or more PDBs. 
  • Backing Up Archived Redo Logs with RMAN 
Archived redo logs are the key to successful media recovery. Back them up regularly. You can back up logs with BACKUP ARCHIVELOG, or back up logs while backing up datafiles and control files by specifying BACKUP ... PLUS ARCHIVELOG.



Question 9

You are administering a database stored in Automatic Storage management (ASM). The files are stored in the DATA disk group. You execute the following command:
 
 
What is the result?


  1. The file ‘+data.231.45678’ is physically relocated to ‘+data/prod’ and renamed as ‘myfile.dbf’.
  2. The file ‘+data.231.45678’ is renamed as ‘myfile.dbf’, and copied to ‘+data/prod’.
  3. The file ‘+data.231.45678’ remains in the same location and a synonym 'myfile.dbf' is created.
  4. The file ‘myfile.dbf’ is created in ‘+data/prod’ and the reference to ‘+data.231.45678’ in the data dictionary removed.
Correct answer: C
Explanation:
ADD ALIAS Use this clause to create an alias name for an Oracle ASM filename. The alias_name consists of the full directory path and the alias itself.
ADD ALIAS 
Use this clause to create an alias name for an Oracle ASM filename. The alias_name consists of the full directory path and the alias itself.



Question 10

Which three functions are performed by the SQL Tuning Advisor?


  1. Building and implementing SQL profiles
  2. Recommending the optimization of materialized views
  3. Checking query objects for missing and stale statistics
  4. Recommending bitmap, function-based, and B-tree indexes
  5. Recommending the restructuring of SQL queries that are using bad plans
Correct answer: ACE
Explanation:
The SQL Tuning Advisor takes one or more SQL statements as an input and invokes the Automatic Tuning Optimizer to perform SQL tuning on the statements. The output of the SQL Tuning Advisor is in the form of an advice or recommendations, along with a rationale for each recommendation and its expected benefit. The recommendation relates to collection of statistics on objects (C), creation of new indexes, restructuring of the SQL statement (E), or creation of a SQL profile (A). You can choose to accept the recommendation to complete the tuning of the SQL statements.
The SQL Tuning Advisor takes one or more SQL statements as an input and invokes the Automatic Tuning Optimizer to perform SQL tuning on the statements. The output of the SQL Tuning Advisor is in the form of an advice or recommendations, along with a rationale for each recommendation and its expected benefit. The recommendation relates to collection of statistics on objects (C), creation of new indexes, restructuring of the SQL statement (E), or creation of a SQL profile (A). You can choose to accept the recommendation to complete the tuning of the SQL statements.









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