Answer:
I believe the answer is exclusive but im not 100% sure
Answer:
Set up audit trail
Explanation:
The administrator should set up an audit trail in order to get this information.
An audit trail would give him the record of all the configuration changes that have been made in a file or a database in the last 6 months.
Audit trails can be manual or electronic. It provides history and also documentation support. It can authenticate security and also help to mitigate challenges.
Answer:
Encapsulating Security Payload (ESP)
Explanation:
Encapsulating Security Payload is also known as ESP, it is a protocol that exists within IPSec, it helps in determining the authentication, integrity and how confidential network pack data / Payload in IPV4 and IPV6 networks are.
ESP supplies messages /Payload encipher, it also helps in authenticating Payload as well as where it originated from in the IPSec protocol suite.