CCNA: Cisco Certified Network Associate — Question 264

Where does the configuration reside when a helper address is configured lo support DHCP?

Answer options

• A. on the router closest to the server
• B. on the router closest to the client
• C. on every router along the path
• D. on the switch trunk interface

Correct answer: B

Explanation

The correct answer is B because the helper address configuration is intended to forward DHCP requests from clients to servers, making it necessary to be on the router closest to the client. The other options are incorrect as they either refer to the server's location or suggest configurations on all routers or switch interfaces, which does not align with how helper addresses function.