In addition to the client being authenticated by the server, certificate authentication also provides

The correct answer is Server authentication.

Server authentication

Explanation:

Certificate-based authentication is majorly used as a Digital Certificate to find out or in better terms identify a user, machine, or device before giving the user access to a resource, application,network, etc. Whereas when it comes from a user authentication, it is mostly used in association with traditional methods such as the username and password. One way easily differentiate a certificate-based authentication is that  some solutions that are effective to work for users, such as biometrics and  the popular one time passwords (OTP), the exact solution can be made use of for all endpoints – users, machine, devices and even the ever increasing Internet of Things or for server authentication.

answer; certification; plz check first, i believe this is correct. good luck;