200-301 Question #1201: Real Exam Question with Answer & Explanation

The correct answer is C: reuses addresses at multiple sites. Private IPv4 addresses allow organizations to reuse the same address ranges internally across multiple sites and conserve the limited global supply of public IPv4 addresses.

Submitted by javi_es· Mar 5, 2026Network Fundamentals

Question

What are two benefits of private IPv4 addressing? (Choose two.)

Options

Apropagates routing information to WAN links
Bprovides unlimited address ranges
Creuses addresses at multiple sites
Dconserves globally unique address space
Eprovides external internet network connectivity

Explanation

Private IPv4 addresses allow organizations to reuse the same address ranges internally across multiple sites and conserve the limited global supply of public IPv4 addresses.

Common mistakes.

A. Private IPv4 addresses are typically filtered at the network edge and are not propagated as routing information to WAN links that connect to the public internet.
B. Private IPv4 address ranges are specifically defined by RFC 1918 and are therefore finite, not unlimited.
E. Private IPv4 addresses cannot directly provide external internet network connectivity; they require NAT to translate them into public addresses for internet access.

Concept tested. Benefits of private IPv4 addressing

Reference. https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13768-nat-faq.html#anc1

Topics

#Private IPv4 addressing#IP address conservation#IP address reuse

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