Exam PAP-001 Topic 1 Question 57 Discussion

Exact Extract (from PingAccess documentation):
"The key pair that you create for theCONFIG QUERYlistener must include both the administrative node and the replica administrative node. To make sure the replica administrative node is included, you can eitheruse a wildcard certificateordefine subject alternative namesin the key pair that use the replica administrative node's DNS name." Why B and D are correct:
* *B. Subject = .company.com- A wildcard certificate for *.company.com is valid for both pa-admin.
company.com and pa-admin2.company.com, satisfying the documented requirement that the key pair include both hostnames for the CONFIG QUERY listener.
* D. Subject Alternative Names = pa-admin.company.com, pa-admin2.company.com- Explicitly placing both DNS names in the SAN extension also satisfies the requirement that the certificate cover both the administrative node and the replica administrative node.
Why the other options are incorrect:
* A. Issuer = pa-admin.company.com- TheIssuerfield identifies the certificate authority (CA) that signed the certificate, not the service hostname. Setting the issuer to a host value is not how X.509 server certificates are validated and would not meet the hostname#matching requirement.
* C. Subject = pa-admin.company.com- While this covers the administrative node, itdoes not include the replica administrative node. Without a wildcard or SAN entries, it fails the requirement that the key pair include both hostnames.
* E. Subject = pa-admin2.company.com- Similarly, this would only cover the replica administrative node andnotthe primary administrative node, failing the requirement.
Reference:
Configuring replica administrative nodes(PingAccess User Interface Reference Guide) Configuring a PingAccess cluster(PingAccess documentation) Certificates(PingAccess User Interface Reference Guide)