The Oakley cryptography protocol is compatible with following for managing security?

A.
IPSec

B.
ISAKMP

C.
Port security

D.
?

Explanation:
BD
IKE (Internet Key Exchange)
A key management protocol standard that is used in conjunction with the IPSec standard. IPSec is an IP
security feature that provides robust authentication and encryption of IP packets. IPSec can be configured
without IKE, but IKE enhances IPSec by providing additional features, flexibility, and ease of configuration for
the IPSec standard. IKE is a hybrid protocol that implements the Oakley key exchange and Skeme keyexchange inside of the Internet Security Association and Key Management Protocol (ISAKMP) framework.
ISAKMP, Oakley, and Skeme are security protocols implemented by IKE.
Source: https://www.symantec.com/security_response/glossary/define.jsp?letter=i&word=ike-internet-keyexchange