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200-301 · Question #1331

What is a characteristic of private IPv4 addressing?

The correct answer is D. is used on hosts that communicate only with other internal hosts. Private IPv4 addresses are reserved for internal network use and are not routable on the public internet.

Submitted by yaw92· Mar 5, 2026Network Fundamentals

Question

What is a characteristic of private IPv4 addressing?

Options

  • Ais used when the ISP requires the new subnet to be advertised to the internet for web services
  • Bprovides unlimited address ranges
  • Cis used when the network has multiple endpoint listeners
  • Dis used on hosts that communicate only with other internal hosts

How the community answered

(39 responses)
  • A
    3% (1)
  • B
    8% (3)
  • C
    3% (1)
  • D
    87% (34)

Why each option

Private IPv4 addresses are reserved for internal network use and are not routable on the public internet.

Ais used when the ISP requires the new subnet to be advertised to the internet for web services

Private subnets are not advertised to the internet; they require Network Address Translation (NAT) to communicate with external networks.

Bprovides unlimited address ranges

Private address ranges are limited to specific blocks defined by RFC 1918, such as 10.0.0.0/8, 172.16.0.0/12, and 192.168.0.0/16, not unlimited.

Cis used when the network has multiple endpoint listeners

While private networks often host multiple endpoints, this is a consequence of network design, not a defining characteristic unique to private IPv4 addressing itself.

Dis used on hosts that communicate only with other internal hostsCorrect

Private IPv4 addresses are specifically designated for hosts that communicate only within a private network, preventing direct routing of these addresses on the public internet.

Concept tested: Private IPv4 addressing purpose

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

Topics

#private IPv4#RFC 1918#internal hosts#address types

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