1Z0-160 Online Practice Questions and Answers

Correct Answer: CE

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

The dbpatchm apply subcommand applies 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

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

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

Correct Answer: DEF

Explanation:

The menu for each deployment that provides the following options:

1.

Open DBaaS Monitor Console — Open the Oracle Cloud Database Monitor for the deployment.

2.

Open Application Express Console — Open the Oracle Application Express home page for the deployment.

3.

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-servicespage.html

Correct Answer: BC

Explanation:

C: SSH is a cryptographic network protocol that uses two keys, one public and one private, to provide secure communication between two networked computers. Port 22 is the standard TCP/IP port that is assigned to SSH servers.

B: To access network protocols and services on a compute node by using a port other than port 22, you must either:

1.

Enable network access to the port

2.

You can use the Oracle Database Cloud Service console to enable access to a port on a compute node.

3.

Create an SSH tunnel to the port Creating an SSH tunnel enables you to access a specific compute node port by using an SSH connection as the transport mechanism. To create the tunnel, you must have the SSH private key file that matches the public key specified during the database deployment creation process.

References: Using Oracle Database Cloud Service (February 2017), 3-2

https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloudservice.pdf

Correct Answer: EF

Correct Answer: A

Explanation:

Network groups provide a method for VMs to be grouped together for communications and firewall rules.

You can define network groups to allow VMs within a group to communicate with each other, while also

preventing those VMs from communicating outside the group.

Note:

Access rule. Access rules define the permitted paths of communication for VMs that are within a network

group. You can define an access rule to enable a specific path of communication between two network

groups, or between a network group and a specified list of IP addresses.

References: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/dbaas/OU/IntroDBaaS/

ConfiguringNetworkSettings/ConfiguringNetworkSettings.html#section2s2

Correct Answer: DEF

Explanation:

Opc is 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 the compute node, such as

backing up or patching; this user can use the sudo command to gain root access to the compute node.

Incorrect Answers:

B: The root user 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 user.

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

Using Oracle Database Cloud Service (February 2017), page 5-3

https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-cloudservice.pdf

Correct Answer: A

Correct Answer: B