Download Oracle.1z0-160.RealExams.2018-11-21.47q.vcex

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Exam Oracle Database Cloud Service
Number 1z0-160
File Name Oracle.1z0-160.RealExams.2018-11-21.47q.vcex
Size 1 MB
Posted Nov 21, 2018
Download Oracle.1z0-160.RealExams.2018-11-21.47q.vcex

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Demo Questions

Question 1

Which statement is true about the Oracle software releases that are currently supported in a Database as a Service (DBaaS) instance in Oracle Public Cloud?


  1. All versions and releases of Oracle Database 12c are supported.
  2. All versions and releases of Oracle Database 11g are supported.
  3. Oracle Database 11g Release 2 is supported.
  4. Oracle Database 12c is supported but only for single container databases.
Correct answer: C
Explanation:
Release 2 and 12c Release 1 (and 2) are supported.    References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_creating_an_instance/obe_dbaas_creating_an_instance.html
Release 2 and 12c Release 1 (and 2) are supported. 
  
References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_creating_an_instance/obe_dbaas_creating_an_instance.html



Question 2

What is the location of the associated database files of a Database Deployment? 


  1. The installer sets the database file locations during installation by configuring the data file storage options.
  2. The Database Deployment data files are stored at: 
    1. Oracle product software; the entire bits Compute Cloud storage volume
    2. Oracle Database data storage; the entire data Compute Cloud storage volume
    3. Database backup storage; the entire fra Compute Cloud storage volume
    4. Database redo logs; the entire redo Compute Cloud storage volume
  3. All database instance files on the Database Deployment are stored at /u01/app/oracle/oradata.
  4. The database file locations are read from utldbfiles.ora and users can update this file to set their own locations.
Correct answer: B
Explanation:
Compute Cloud Service Storage Volumes When a Database Cloud Service database deployment is created at the Oracle Database Cloud Service service level, the following storage volumes are created.     References: Using Oracle Database Cloud Service (February 2017), page A-9http://docs.oracle.com/cloud/latest/dbcs_dbaas/CSDBI/CSDBI.pdf
Compute Cloud Service Storage Volumes 
When a Database Cloud Service database deployment is created at the Oracle 
Database Cloud Service service level, the following storage volumes are created. 
  
References: Using Oracle Database Cloud Service (February 2017), page A-9
http://docs.oracle.com/cloud/latest/dbcs_dbaas/CSDBI/CSDBI.pdf



Question 3

Which command would you execute to perform DBaaS recovery with the latest backup? 


  1. dbaascli rec –args –latest
  2. dbaascli orec –args -latest
  3. dbaascli rec –args -last
  4. dbaascli orec –args -last
Correct answer: B
Explanation:
dbaascli orec latest command restores the most recent backup and performs complete recovery. References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/dbaascli.html
dbaascli orec latest command restores the most recent backup and performs complete recovery. 
References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/dbaascli.html



Question 4

You are migrating an Oracle Database 11.2.0.4 on-premise database to an Oracle Database Cloud Service (Database as a Service) that provides a pre-created Oracle Database 12.1.0.2 database. 
What four migration methods can be used?


  1. conventional export/import
  2. Transportable Tablespace (TTS) with RMAN conversion
  3. Transportable Tablespace (TTS) by using Oracle Data Pump
  4. SQL *Loader
  5. RMAN image restore
  6. Data Pump Transportable Database (TDB) export/import
Correct answer: BCDF
Explanation:
You load data into an Oracle database on Oracle Database Cloud Service using the same tools you would use for an Oracle database on another system. (D) Using SQL*Loader to Load Data into the Database Using Oracle Data Pump Import to Load Data into the Database (BC) Using Transportable Tablespaces to Load Data into the Database There are two ways to transport a tablespace:Manually, involving issuing commands to SQL*Plus, RMAN, and Data Pump. Using the Transport Tablespaces Wizard in Enterprise Manager Using Pluggable Databases (PDBs) to Load Data into the Database Using Oracle Public Cloud Data Transfer Services to Move Large Data Sets (F) Full transportable export/import, is available to make migration to Oracle Database 12c faster, easier, and more efficient than ever before. Full transportable export is available starting with Oracle Database 11g Release 2 (11.2.0.3). References:  https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/load-data-db.htmlhttps://docs.oracle.com/cd/B28359_01/server.111/b28310/tspaces013.htm#ADMIN11395http://www.oracle.com/technetwork/database/enterprise-edition/full-transportable-wp-12c-1973971.pdf
You load data into an Oracle database on Oracle Database Cloud Service using the same tools you would use for an Oracle database on another system. 
  • (D) Using SQL*Loader to Load Data into the Database 
  • Using Oracle Data Pump Import to Load Data into the Database 
  • (BC) Using Transportable Tablespaces to Load Data into the Database 
There are two ways to transport a tablespace:
Manually, involving issuing commands to SQL*Plus, RMAN, and Data Pump. 
Using the Transport Tablespaces Wizard in Enterprise Manager 
  • Using Pluggable Databases (PDBs) to Load Data into the Database 
  • Using Oracle Public Cloud Data Transfer Services to Move Large Data Sets 
  • (F) Full transportable export/import, is available to make migration to Oracle Database 12c faster, easier, and more efficient than ever before. Full transportable export is available starting with Oracle Database 11g Release 2 (11.2.0.3). 
References:  https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/load-data-db.html
https://docs.oracle.com/cd/B28359_01/server.111/b28310/tspaces013.htm#ADMIN11395
http://www.oracle.com/technetwork/database/enterprise-edition/full-transportable-wp-12c-1973971.pdf



Question 5

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 oracle. 
What three functions can be used by Oracle users in a Database Deployment?


  1. Grant privileges and roles to database users.
  2. Create database users.
  3. Back up and recover databases.
  4. Create tablespaces.
  5. Reboot a VM.
  6. Use the sudo command to perform root user access operations.
Correct answer: ABC
Explanation:
Oracle is the Oracle Database administrator account you use to access the system and perform non-root database administration tasks. A home directory, /home/oracle, is created for this user. This user cannot use the sudo command to perform operations that require root-user access. Additionally, by default you cannot connect as this user to the compute node using SSH. You can add the public key to the user’s $HOME/.ssh/authorized_keys file to grant persistent SSH access, or you can connect as the opc user and then use the sudo -s command to start a root-user command shell, followed by an su - oracle command to switch to the oracle user. Incorrect Answers:F: root is 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, not the oracle, user. References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/linux-user-accounts-rac.htmlhttp://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_administering_your_database_cloud_service/obe_dbaas_administering_your_database_cloud_service.html
Oracle is the Oracle Database administrator account you use to access the system and perform non-root database administration tasks. A home directory, /home/oracle, is created for this user. This user cannot use the sudo command to perform operations that require root-user access. Additionally, by default you cannot connect as this user to the compute node using SSH. You can add the public key to the user’s $HOME/.ssh/authorized_keys file to grant persistent SSH access, or you can connect as the opc user and then use the sudo -s command to start a root-user command shell, followed by an su - oracle command to switch to the oracle user. 
Incorrect Answers:
F: root is 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, not the oracle, user. 
References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/linux-user-accounts-rac.html
http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_administering_your_database_cloud_service/obe_dbaas_administering_your_database_cloud_service.html



Question 6

Where is the Oracle Database Cloud software for monitoring and backup installed?


  1. The Oracle Database Cloud software is located in the Database Automatic Diagnostic Repository (ADR).
  2. The installation is done at /var/opt/oracle/dbaascli and /var/opt/oracle/bkup_api.
  3. The location must be set during installation as user-defined locations for the installation to start.
  4. The location is based on Oracle Flex Architecture, which is similar to non-DBaaS systems.
Correct answer: B
Explanation:
When a database deployment is created using the Oracle Database Cloud Service service level, software is installed in the following locations. bkup_api utility /var/opt/oracle/bkup_api dbaascli utility /var/opt/oracle/dbaascli Oracle REST Data Services /u01/app/oracle/product/apex_listener Oracle Database $ORACLE_HOME:Oracle Database 12c: /u01/app/oracle/product/12.1.0/dbhome_1Oracle Database 11g: /u01/app/oracle/product/11.2.0/dbhome_1Note: Using the dbaascli utility, you can perform operations like: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 Patching the database deployment Database recovery Rotating the master encryption key References: Using Oracle Database Cloud Service (February 2017), A-4https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf
When a database deployment is created using the Oracle Database Cloud Service service level, software is installed in the following locations. 
  • bkup_api utility /var/opt/oracle/bkup_api 
  • dbaascli utility /var/opt/oracle/dbaascli 
  • Oracle REST Data Services /u01/app/oracle/product/apex_listener 
  • Oracle Database 
$ORACLE_HOME:
  • Oracle Database 12c: /u01/app/oracle/product/12.1.0/dbhome_1
  • Oracle Database 11g: /u01/app/oracle/product/11.2.0/dbhome_1
Note: Using the dbaascli utility, you can perform operations like:
  • 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 
  • Patching the database deployment 
  • Database recovery 
  • Rotating the master encryption key 
References: Using Oracle Database Cloud Service (February 2017), A-4
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf



Question 7

Oracle provides additional web-based tools for monitoring Database as a Service (DBaaS) instances. One of the tools is DBaaS Monitor Console. 
Which user would you have to log in as to use this tool? 


  1. dbsnmp
  2. sys
  3. dbaas_monitor
  4. sysman
Correct answer: C
Explanation:
To access Oracle DBaaS Monitor when the HTTPS port is unblocked:1. Open the Oracle Database Cloud Service console. 2. From the menu for the deployment, select Open DBaaS Monitor Console. A window prompting you for your user name and password is displayed. 3. Enter dbaas_monitor as the user name and the password specified during the database deployment creation process, and then click OK. References: Using Oracle Database Cloud Service (February 2017), 10-2https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf
To access Oracle DBaaS Monitor when the HTTPS port is unblocked:
1. Open the Oracle Database Cloud Service console. 
2. From the menu for the deployment, select Open DBaaS Monitor Console. 
A window prompting you for your user name and password is displayed. 
3. Enter dbaas_monitor as the user name and the password specified during the database deployment creation process, and then click OK. 
References: Using Oracle Database Cloud Service (February 2017), 10-2
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf



Question 8

How would you connect from your local machine to the database instance on the DBaaS server by using SQL*Net?


  1. You start an SSH process on your local machine to communicate to a tunnel created on the DBaaS server.
  2. You must use port 1521 and the TCPS communication protocol.
  3. You can use only the SSH connection that is defined on port 22 that is configured by default during DBaaS instance installation.
  4. You must use Transparent Data Encryption (TDE) to secure connections to the DBaaS database instance when using SQL*Net connections from your local machine to DBaaS database instances.
Correct answer: B
Explanation:
To confirm remote access to the database through the SQL*Net security rule, create a connection to the database in Oracle SQL Developer. When creating the connection, fill out the fields as follows:Username: enter SYSTEM.Password: enter Pa55_WoRd.Hostname: enter the Public IP address of the compute node associated with the database deployment. To find out this address, display details of the service as described in Viewing Detailed Information for a Database Deployment Port: enter 1521.SID: enter ORCL.After entering values, click Test to test the connection. Note: TCPS is TCP/IP with SSL.References: Using Oracle Database Cloud Service (February 2017), 4-24https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf
To confirm remote access to the database through the SQL*Net security rule, create a connection to the database in Oracle SQL Developer. When creating the connection, fill out the fields as follows:
  • Username: enter SYSTEM.
  • Password: enter Pa55_WoRd.
  • Hostname: enter the Public IP address of the compute node associated with the database deployment. To find out this address, display details of the service as described in Viewing Detailed Information for a Database Deployment 
  • Port: enter 1521.
  • SID: enter ORCL.
After entering values, click Test to test the connection. 
Note: TCPS is TCP/IP with SSL.
References: Using Oracle Database Cloud Service (February 2017), 4-24
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloud-service.pdf



Question 9

How do you enable a default connection between Database as a Service (DBaaS) instances? 


  1. by creating security lists and adding the instances that you want to communicate to that group
  2. by creating dedicated communication keys and setting them to be used only for your DBaaS instance-to-instance communication
  3. by creating nothing for communication between the DBaaS instances because all instances are interconnected by default
  4. by installing and configuring the NETMGR utility for your DBaaS environment, and then using it to set up the required communication channels
Correct answer: A
Explanation:
Before your DBaaS database was created, you or a coworker generated a private and public SSH key pair, perhaps using PuTTY Key Generator. The public key was specified when your database instance was created; a copy of that public key was stored in the VM hosting your database. When you define in PuTTY an SSH connection to the VM hosting your database, you will specify a copy of the private key stored on your local PC. When you initiate a PuTTY connection, the VM compares the private key to the matching public key stored in the VM. The VM permits the connection when the private and public key match as a valid key pair. References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_connecting_to_an_instance/obe_dbaas_connecting_to_an_instance.html
Before your DBaaS database was created, you or a coworker generated a private and public SSH key pair, perhaps using PuTTY Key Generator. 
The public key was specified when your database instance was created; a copy of that public key was stored in the VM hosting your database. 
When you define in PuTTY an SSH connection to the VM hosting your database, you will specify a copy of the private key stored on your local PC. When you initiate a PuTTY connection, the VM compares the private key to the matching public key stored in the VM. The VM permits the connection when the private and public key match as a valid key pair. 
References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/obe_dbaas_connecting_to_an_instance/obe_dbaas_connecting_to_an_instance.html



Question 10

You are on the Database Cloud Service Instance View page. 
Which three consoles can you open?


  1. OPC Console
  2. GlassFish Administration Console
  3. Storage Container Console
  4. Application Express Console
  5. User Console
  6. Database Express Manager Console
Correct answer: DEF
Explanation:
The menu for each deployment that provides the following options:Open DBaaS Monitor Console — Open the Oracle Cloud Database Monitor for the deployment. Open Application Express Console — Open the Oracle Application Express home page for the deployment. Open EM Console — Open the database console, either Enterprise Manager Database Express 12c or Enterprise Manager 11g Database Control. References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/service-console-services-page.html
The menu for each deployment that provides the following options:
  • Open DBaaS Monitor Console — Open the Oracle Cloud Database Monitor for the deployment. 
  • Open Application Express Console — Open the Oracle Application Express home page for the deployment. 
  • Open EM Console — Open the database console, either Enterprise Manager Database Express 12c or Enterprise Manager 11g Database Control. 
References: https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/service-console-services-page.html









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