QuestionQ972

Security Fundamentals

Which kind of IPv4 address must be assigned to a server to protect it from external access, allow access only for internal users, and restrict Internet access?

  • A private
  • B public
  • C global unicast
  • D multicast
Explanation

A private IPv4 address is correct because RFC 1918 private addresses are reserved for internal networks and are not routed on the public Internet. That prevents direct external reachability while still allowing internal users to access the server within the organization’s network. Public or global unicast addresses are Internet-routable, and multicast addresses are used for group delivery rather than assigning normal server endpoints.

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