CCNA: Cisco Certified Network Associate — Question 852

What is a characteristic of private IPv4 addressing?

Answer options

• A. is used without allocation from a regional internet authority
• B. is used when traffic on the subnet must traverse a site-to-site VPN to an outside organization
• C. reduces the forwarding table on network routers
• D. provides unlimited address ranges

Correct answer: A

Explanation

Option A is correct because private IPv4 addresses can be utilized without needing to be allocated by a regional internet authority, allowing for internal use within organizations. Options B, C, and D are incorrect as they do not accurately describe the characteristics of private IPv4 addressing; for instance, private addresses do not inherently require VPNs and do not provide limitless address ranges.