N10-009 Domain 4: Network Security

Which VPN protocol runs on SSL/TLS port 443 often?

Multiple choice — select one answer

Answer choices

  1. a. Next-generation firewall (NGFW)
  2. b. VPN then RDP over private network
  3. c. OpenVPN or SSL VPN variants
  4. d. DoS/DDoS

Architectural breakdown & explanation

SSL VPNs traverse firewalls using HTTPS port.

Correct answer(s): c. OpenVPN or SSL VPN variants

Exam domain: Domain 4: Network Security (19% weight on the official guide).

Official documentation & study links

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