200-301 · Question #1201
What are two benefits of private IPv4 addressing? (Choose two.)
The correct answer is C. reuses addresses at multiple sites D. conserves globally unique address space. 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.
Question
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
How the community answered
(29 responses)- A3% (1)
- B7% (2)
- C86% (25)
- E3% (1)
Why each option
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.
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.
Private IPv4 address ranges are specifically defined by RFC 1918 and are therefore finite, not unlimited.
Private IPv4 addresses are not routed on the public internet, which means the same address ranges (e.g., 10.0.0.0/8) can be reused by numerous organizations or at various internal sites without causing address conflicts.
By using private addresses internally and Network Address Translation (NAT) at the network edge, organizations can allow many devices to share a smaller pool of public IP addresses, thereby reducing demand and conserving the globally unique public IPv4 address space.
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
Source: https://www.cisco.com/c/en/us/support/docs/ip/network-address-translation-nat/13768-nat-faq.html#anc1
Topics
Community Discussion
No community discussion yet for this question.