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200-301 · Question #367

In which situation is private IPv4 addressing appropriate for a new subnet on the network of an organization?

The correct answer is A. There is limited unique address space, and traffic on the new subnet will stay local within the. Private IPv4 addressing is appropriate for a new subnet when unique public address space is limited, and traffic on the subnet is primarily local to the organization's network.

Submitted by alyssa_d· Mar 5, 2026Network Fundamentals

Question

In which situation is private IPv4 addressing appropriate for a new subnet on the network of an organization?

Options

  • AThere is limited unique address space, and traffic on the new subnet will stay local within the
  • BThe network has multiple endpoint listeners, and it is desired to limit the number of broadcasts.
  • CTraffic on the subnet must traverse a site-to-site VPN to an outside organization.
  • DThe ISP requires the new subnet to be advertised to the internet for web services.

How the community answered

(52 responses)
  • A
    94% (49)
  • B
    4% (2)
  • C
    2% (1)

Why each option

Private IPv4 addressing is appropriate for a new subnet when unique public address space is limited, and traffic on the subnet is primarily local to the organization's network.

AThere is limited unique address space, and traffic on the new subnet will stay local within theCorrect

Private IP addresses are ideal for internal network segments where devices do not need direct public internet accessibility, preserving public IP addresses and allowing flexible internal numbering without global conflicts, especially when subnet traffic remains local.

BThe network has multiple endpoint listeners, and it is desired to limit the number of broadcasts.

While limiting broadcasts is a good network design principle, private addressing itself does not directly limit broadcasts; proper subnetting and network segmentation achieve this.

CTraffic on the subnet must traverse a site-to-site VPN to an outside organization.
DThe ISP requires the new subnet to be advertised to the internet for web services.

Concept tested: Appropriate use cases for private IPv4 addressing

Source: https://datatracker.ietf.org/doc/html/rfc1918

Topics

#Private IPv4 addressing#IP addressing principles#Subnetting basics

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