CCNA Routing and Switching (legacy) — Question 154

Under which circumstance should a network administrator implement one-way NAT?

Answer options

• A. when the network must route UDP traffic
• B. when traffic that originates outside the network must be routed to internal hosts
• C. when traffic that originates inside the network must be routed to internal hosts
• D. when the network has few public IP addresses and many private IP addresses require outside access B

Correct answer:

Explanation

The correct answer is D because one-way NAT is typically used when there are limited public IP addresses available and a larger number of private IP addresses need to access external resources. Options A and C are incorrect as they do not specifically relate to the necessity for NAT, while option B is inaccurate because it describes a scenario that does not require one-way NAT.