Exam 200-201 topic 1 question 410 discussion

The correct answer is A. X.509 is a standard format for public key certificates, which are used to verify the identity of the server and establish a secure connection in HTTPS. These certificates are issued by trusted Certificate Authorities (CAs) and provide the necessary validation for secure communication over the web. The X.509 certificates are used in both SSL and TLS protocols to secure web traffic, ensuring that the connection is encrypted and the server's identity is authenticated.

A is the better answer to meet the requirement of validating and protecting the HTTPS connection against impersonators, the engineer should use an X.509 certificate, as it is the standard certificate format used in SSL/TLS protocols to ensure both authentication and encryption.