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NO.1 What are two ways to enable a port on your DBaaS VM server for access to your DBaaS
instance?
A. Configure all remote connections through port 22 that is assigned by default for SSH connections.
B. Use the DBaaS Compute Cloud Service Console to open ports to a set of IP addresses.
C. Ask Oracle DBaaS Support to open the required ports.
D. Use your public and private key pairs to define a list of preferred ports that get enabled during
your DBaaS instance installation.
E. Create a tunnel for port forwarding by using SSH.
Answer: A,E
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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:
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
NO.2 You created your Database as a Service (DBaaS) database instance. Predefined network access
rules are also created.
Which two predefined network access rules are created when you created the DBaaS database
instance?
A. Theora_p2_dblisteneraccess rule for the public-internet network group (any host on the Internet)
is created to communicate with the ora_db predefined network group over SQL *Net.
B. The ora_db_public access rules to manage database access through the default port 1521 and the
ora_db_admin access rules for SSH connection via SQL *Net through port 5500 are created.
C. The ora_access dbaccess rule for SSH connection via PuTTY is created to configure network rules
and ora_access_console for HTIPS access to Oracle Cloud Services Console.
D. Theora_p2_sshaccess rule for the public-internet network group is created to communicate with
the ora_db predefined network group over SSH.
E. No access rules are created by default and users must manually configure all access rules.
Answer: A,D
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Explanation:
When a database deployment is created, the following Oracle Compute Cloud Service security rules
are created, but set to a disabled status.
References:
Using Oracle Database Cloud Service (February 2017), page A-5
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/using-oracle-database-
cloudservice.pdf
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