TheCCST Cybersecuritymaterial states that aVirtual Private Network (VPN)provides secure communication over an untrusted network, typically by ensuring:
Authentication→ verifying the identity of the user/device
Confidentiality→ encrypting the data so it cannot be read by unauthorized parties
Integrity→ ensuring that transmitted data has not been altered in transit
"VPNs secure remote access by authenticating users, encrypting data for confidentiality, and ensuring integrity through cryptographic checks."
Ais incorrect: WAN management is a network administration function, not a VPN feature.
Bis incorrect: Authorization is related but not a primary VPN security function.
Cis correct: Integrity is preserved through cryptographic hashing.
Dis correct: Authentication verifies user identity.
Eis correct: Confidentiality is provided via encryption.
Fis incorrect: Password management is separate from VPN functions.
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