200-301: Cisco Certified Network AssociateDemo

By Cisco · Question Mode

QuestionQ1363

IP Connectivity

What is a characteristic of private IPv4 addressing?

  • A is used when the ISP requires the new subnet to be advertised to the internet for web services
  • B allows multiple companies to use the same addresses without conflict
  • C is used on the external interface of a firewall
  • D allows endpoints to communicate across public network boundaries
Explanation

Private IPv4 addresses are reserved for internal networks and are not globally routable on the public internet, so the same private address ranges can be reused by many different organizations without conflict. Public advertisement, internet-facing interfaces, and direct communication across public network boundaries require public routable addressing instead.

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