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Oracle Database Cloud Service

Question No: 1

Which two statements are true about the sequence of steps that are performed when creating a Database as a Service (DBaaS) instance in Oracle Public Cloud?

  1. A Secure Shell (SSH) key is provided by Oracle for accessing the DBaaS environment as the first step in creating a DBaaSinstance.

  2. The billing frequency depends on the Oracle database software edition that is selected for the DBaaS instance.

  3. The public SSH key is provided when configuring the database in the DBaaS instance.

  4. Storage configuration must be selected forthe DBaaS instance.

  5. The database that is configured may be an Oracle 11g database.

Answer: A,E Explanation:

E: Onwizard Software Release page page to select the Oracle Database software release that you want to run on your instance.

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Note: When you create a database instance, you use the Create Database Cloud Service wizard, which steps you through the process of making the choices that produce a service instance tailored to your needs. These choices include:

Question No: 2

Your Database as a Service (DBaaS) instance hosts a multitenant container database

(CDB) with four pluggable database (PDB) tenants.

Users of an application in one PDB and users of another application in another PDB complain of poor performance.

Investigation shows that the application sessions are not using excessive CPU nor are they requesting an unusual amount of I/O.

Which two steps should you perform to resolve this problem?

  1. Add storage to the DBaaS instance.

  2. Add CPU to the DBaaS instance.

  3. Examine the shares of resources allocated to each PDB within the CDB.

  4. Examine the shares of resources allocated to each consumer group within all four PDBs.

  5. Examine the shares of resources allocated to each consumer group within the PDBs that contain the two applications.

  6. Add memory to the DBaaS instance.

Answer: E,F

Question No: 3

You want to perform an on-demand backup. Which two statements are true?

  1. Connect to the instance’s VM as theopcuser.

  2. Connect to the instance’s VM as theoracleuser.

  3. Disable the backup configuration (crontab).

  4. Enable the backup configuration (crontab).

Answer: A,D Explanation:

A:Creating an On-Demand Backup by Using the bkup_api Utility

You can use the bkup_api utility to create an on-demand backup of a databasedeployment hosting a single-instance database or an Oracle Data Guard configuration.

D: If some activity you want to perform requires you to temporarily disable regularly

scheduledbackups, you can do so by removing the scheduling information from the system-wide /etc/crontab file.

References: Using Oracle Database Cloud Service (February 2018), 6-4 https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database- cloud-service.pdf

Question No: 4

dbaascli is a command-line interface for managing a database instance on cloud. Which two functions can you manage with dbaascli?

  1. running health checks on your database

  2. creating users in the database instance

  3. restoring fromthe most recent backup

  4. creating a database instance

  5. applying a patch

Answer: C,E Explanation:

The dbaascli utility is provided on Oracle Database Cloud Service deployments to perform a variety of life-cycle and administration operations.

Using the dbaascli utility, you can perform operations like:

*Database recovery

The orec latest subcommand restores the most recent backup and performs complete recovery.

*Patching the database deployment Thedbpatchmapplysubcommandapplies the patch.

*Changing the password of the SYS user

*Checking the status of the Oracle Data Guard configuration

*Switchover and failover in an Oracle Data Guard configuration

*Rotating the master encryption key

References:https://docs.oracle.com/en/cloud/paas/database-dbaas- cloud/csdbi/dbaascli.html

Question No: 5

You wish to perform database recovery and restore the most recent backup. Which two steps will you perform?

  1. Disable the scheduled backup configuration.

  2. Disable thescheduled recovery configuration.

  3. Perform the restore with thedbaascli orec -args -latestcommand.

  4. Perform the restore with thedbaascli orec -args -lastcommand.

  5. Perform the restore with thedbaascli orec -args -stop-lastcommand.

  6. Performthe restore with thedbaascli orec -args -close -lastcommand.

Answer: A,C Explanation:

A: Note: If some activity you want to perform requires you to temporarily disable regularly scheduled backups, you can do so by removing the scheduling information from the system-wide /etc/crontab file.

C:You can use the dbaascli utility to restore from the most recent backup and perform complete recovery on a database deployment hosting a single-instance database:

References: Using Oracle Database Cloud Service (February 2018), page 6-23 https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database- cloud-service.pdf

Question No: 6

Which users are created and can be used for database and host management of your DBaaS database servers?

  1. root,opcandoracleusers

  2. root,oracleandcloudusers

  3. rootandoracleusers

  4. opcandoracleusers

  5. cloudandoracleusers

Answer: D Explanation:

Linux user accounts that are provisioned on an Oracle Database Cloud Service deployment that hosts an Oracle Real Application Clusters (Oracle RAC) database:

  • opc

    The system administrator account you use to connect to the compute node using SSH. This user can use the sudo command to perform operations that require root-user access.

  • oracle

    The Oracle Database administrator account you use to access the system and perform non-root database administration tasks.

  • grid

    The Oracle Grid Infrastructure administrator account you use to perform ASM, ACFS, and clusterware administration tasks.

  • root

    The root administrator for the system. You do not have direct access to this account. To perform operations that require root-user access, use the sudo command as the opc user.

    References:https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/linux-user- accounts-rac.html

    Question No: 7

    You created a Database as a Service (DBaaS) instance. This action also created a virtual machine and configured it for the DBaaS instance. It also created two user accounts. One of the users is opc.

    Which three functions can the opc user perform?

    1. dropping the database instance

    2. any root-user operation

    3. database tuning

    4. database backup and recovery

    5. administrative operations in the virtual machine

    6. operations that requires root-user access

    Answer: D,E,F Explanation:

    Opcis the system administrator account you use to connect to the compute node using SSH. This user can use the sudo command to perform operations that require root-user access.

    Connect as the user opc to perform operations that require root access to thecompute node, such as backing up or patching; this user can use the sudocommand to gain root access to the compute node.

    Question No: 8

    You have an Oracle Database 12c on-premise non-CDB database that is running on the AIX platform.

    Which two methods can be used to migrate the on-premise database to a database that is running in a Database as a Service (DBaaS) instance on Oracle Cloud?

    1. Remote Cloning

    2. Transporting Tablespaces by using RMAN convert

    3. Data Pump

    4. Transporting Tablespaces by using RMAN “backup from platform”

    5. scpfile copy

    Answer: A,C Explanation:

    You can migrate Oracle Database 12c non-CDB databases from on-premises to Oracle Database 12c databases in Oracle Database Cloud using several different methods including:

  • Data Pump Conventional Export/Import

    This method can be used regardless of the endian format and database character set of the on-premises database.

  • Remote Cloning (non-CDB)

    This method can be used only if the on-premises platform is little endian, the on-premises database release is 12.1.0.2 or higher, and the on-premises database and Database Cloud Service database have compatible database character sets and national character sets.

    You can use the remote cloning method to copy an Oracle Database 12c non-CDB on- premises database to your Oracle Database 12cdatabase in the cloud.

  • RMAN CONVERT Transportable Tablespace with Data Pump

    This method can be used only if the database character sets of your on-premises database and Oracle Database Cloud Service database are compatible.

  • RMAN Cross-Platform Transportable Tablespace Backup Sets

This method can be used only if the database character sets of your on-premises database and Oracle Database Cloud Service database are compatible.

References:https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/mig-12c- non-cdb-12c.html

Question No: 9

When you are using Oracle Compute Service Console and reviewing the network configuration of your database instance, what do the arrows that are shown within the Access Rules define?

  1. They are used to show if the connection was completely secured.

  2. They define the availability of network access to the database instance.

  3. They define the direction of network access to the database instance.

  4. They show the status of the database instance.

Answer: B Explanation:

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The arrows indicate if the access rule is enabled or not. Example:

References:https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/service- console-access-rules-page.html

Question No: 10

Which two statements are true about the Database as a Service (DBaaS) instances and Oracle database instances that are provided by Oracle Public Cloud?

  1. A DBaaS instance requires customers to installany additional management tools for their environment.

  2. A DBaaS instance never provides a pre-created Oracle database.

  3. An Oracle database instance that is provided as part of DBaaS runs the same executable that would be run with the same version andrelease of Oracle Database on private premises.

  4. A DBaaS instance always provides a customer-selected version of the Oracle database software.

  5. Only one Oracle database instance can run in a DBaaS instance on Oracle Public Cloud.

Answer: C,D Explanation:

D: The wizard#39;s Software Release page is used to select the Oracle Database software release that you want to run on your instance.

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On the Software Edition page select the Oracle Database software edition that you want to run on your instance.

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References:http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_d baas_creating_an_instance/obe_dbaas_creating_an_instance.html

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