CCNA: Cisco Certified Network Associate — Question 466

What are two reasons to implement IPv4 private addressing on a network? (Choose two.)

Answer options

• A. To enable internal applications to treat the private IPv4 addresses as unique
• B. To facilitate renumbering when merging networks
• C. To expand the routing table on the router
• D. To provide protection from external denial-of-service attacks
• E. To conserve global unique IPv4 addresses

Correct answer: A, E

Explanation

The correct answers are A and E. Option A is correct because private IPv4 addresses allow internal applications to function without conflicts, treating them as unique. Option E is also correct, as using private addressing helps to conserve the limited pool of global unique IPv4 addresses. Options B, C, and D are not primary reasons for implementing private addressing.