Implementing Cisco Enterprise Advanced Routing and Services (ENARSI) — Question 448

Which IPv6 feature enables a device to reject traffic when it is originated from an address that is not stored in the device binding table?

Answer options

• A. IPv6 Source Guard
• B. IPv6 DAD Proxy
• C. IPv6 RA Guard
• D. IPv6 Snooping

Correct answer: A

Explanation

The correct answer is A, IPv6 Source Guard, which effectively prevents unauthorized access by rejecting packets from unrecognized addresses. The other options, such as IPv6 DAD Proxy, IPv6 RA Guard, and IPv6 Snooping, serve different purposes related to address resolution and router advertisement filtering, but do not specifically provide the traffic rejection feature based on binding tables.