Which two statements are true about the IPTables firewall configuration on a Database Machine-
Machine after the default Initial deployment?
A.
IPTables is configured with Oracle supplied rules on the cells.
B.
IPTables is configured with Oracle supplied rules on the database servers.
C.
IPTables is installed and available but not configured on any servers.
D.
IPTables is installed and available but not configured on the database servers.
E.
IPTables is installed and available but not configured on the cells.
Explanation:
Note:
*As for the iptables settings, I don’t believe Oracle supports making
modifications to these rules. They’re configured out of the box based on the
version of the storage server software you’re running. As far as I know, the
configuration cannot be easily modified.
A & B
A & D
A & B
A,B
A is right. cellwall implements iptable firewall rule on all cell nodes
B is wrong. there is no firewall auto configured on DB nodes
C is wrong. IPtable configured on cell nodes
D is right. IPtable available but not configured auto on db nodes
E is wrong. cellwall implements iptable firewall rule on all cell nodes
So A.D. are correct
Agree With L.Zhu .. the correct answer is A.D .. see the following official note from oracle
Note:
There is no firewall automatically configured for the database servers. Implement a set of iptables on the database servers to meet your network requirements for Oracle Exadata Database Machine.
https://docs.oracle.com/cd/E50790_01/doc/doc.121/e50471/security.htm#SAGUG20991
AD very good work L. Zhu and hisham