Which three statements are true about SSH tunnels in a …

Which three statements are true about SSH tunnels in a Database as a Service (DBaaS) Cloud configuration?

A.
A separate SSH tunnel is required for each port that is required for the environment.

B.
The SSH tunnel should include all required ports for the environment.

C.
The available protocols include ssh-2 DSA.

D.
The default protocol is ssh-1 RSA.

E.
The SSH tunnel is opened automatically by the Cloud Services VPN and remains open.

F.
The SSH tunnel must be opened manually and must remain open.

Explanation:
C:

Incorrect Asnwes:
B: You can only specify the source port, and the destination port.
D: The default protocol is ssh-2 RSAReferences: http://www.oracle.com/webfolder/technetwork/tutorials/obe/cloud/javaservice/JCS/JCS_SSH/create_sshkey.html
https://docs.oracle.com/en/cloud/paas/database-dbaas-cloud/csdbi/create-ssh-tunnel.html