Which protocol provides authentication, integrity, and confidentiality services and is a type of VPN?
- MD5
- AES
- IPsec
- ESP
Explanation: IPsec services allow for authentication, integrity, access control, and confidentiality. With IPsec, the information exchanged between remote sites can be encrypted and verified. Both remote-access and site-to-site VPNs can be deployed using IPsec.
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