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200-301 · Question #418

What is a characteristic of private IPv4 addressing?

The correct answer is D. used without tracking or registration. Private IPv4 addresses are special IP address ranges reserved for use within private networks, such as homes or enterprises, and are designed to be used locally without the need for registration or unique assignment by internet registries. These addresses are not routable on the

Submitted by femi9· Mar 5, 2026Network Fundamentals

Question

What is a characteristic of private IPv4 addressing?

Options

  • Atraverse the Internet when an outbound ACL is applied
  • Bissued by IANA in conjunction with an autonomous system number
  • Ccomposed of up to 65.536 available addresses
  • Dused without tracking or registration

How the community answered

(35 responses)
  • A
    3% (1)
  • B
    3% (1)
  • D
    94% (33)

Why each option

Private IPv4 addresses are special IP address ranges reserved for use within private networks, such as homes or enterprises, and are designed to be used locally without the need for registration or unique assignment by internet registries. These addresses are not routable on the public internet.

Atraverse the Internet when an outbound ACL is applied

Private IP addresses cannot traverse the Internet directly, even with an outbound ACL; they require Network Address Translation (NAT) to be converted to public IP addresses.

Bissued by IANA in conjunction with an autonomous system number

Private IP addresses are specified by RFC 1918 and are not issued by IANA in conjunction with autonomous system numbers; public IP addresses are.

Ccomposed of up to 65.536 available addresses

This statement is too vague and potentially incorrect; for example, the 10.0.0.0/8 private range alone has over 16 million addresses.

Dused without tracking or registrationCorrect

Private IPv4 addresses are specifically defined in RFC 1918 to be used within private networks without requiring global registration or tracking by Internet registries. They are non-routable on the public internet.

Concept tested: Private IPv4 addressing characteristics

Source: https://www.rfc-editor.org/rfc/rfc1918

Topics

#private IPv4#RFC 1918#IP addressing#IANA

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