Which of the following helps to ensure the identities of individuals in two-way communication are...

[Reference: https://www.cloudflare.com/ru-ru/learning/access-management/what-is-mutual-authentication/, , Mutual certificate authentication is a method of verifying the identities of individuals in two-way communication by using digital certificates that are issued and signed by a trusted third party, such as a certificate authority (CA). Mutual certificate authentication ensures that both parties in the communication are who they claim to be, and that they can trust each other’s identity and credentials. Mutual certificate authentication also provides confidentiality, integrity and non-repudiation of the data exchanged between the parties, as it uses encryption, hashing and digital signatures. The other options are not as effective as mutual certificate authentication in verifying the identities of individuals in two-way communication. Virtual private network (VPN) is a technology that creates a secure and encrypted connection between two parties over a public network, such as the internet, but it does not verify the identities of the parties, only their locations. Transport Layer Security (TLS) is a cryptographic protocol that provides end-to-end communication security between two parties over a network, such as the internet, but it does not verify the identities of the parties, only their servers. Secure Shell (SSH) is a network protocol that provides secure and encrypted remote access to a system or server, but it does not verify the identities of the parties, only their usernames and passwords1, p. 90-91 References: 1: CDPSE Review Manual (Digital Version), , ]