CCNA: Cisco Certified Network Associate — Question 321

Which keyword in a NAT configuration enables the use of one outside IP address for multiple inside hosts?

Answer options

• A. source
• B. static
• C. pool
• D. overload

Correct answer: D

Explanation

The correct answer is D, 'overload', as it is specifically used in NAT configurations to allow many internal devices to share a single external IP address. Options A, B, and C do not enable this functionality; 'source' refers to the type of NAT, 'static' is for one-to-one mapping, and 'pool' is used for defining a range of IP addresses for NAT, not for overload purposes.