Developing Applications Using Cisco Core Platforms and APIs (DEVCOR) — Question 152

A developer is deploying an application to automate the configuration and management of Cisco network switches and routers. The application must use REST
API interface to achieve programmability. The security team mandates that the network must be protected against DDoS attacks. What mitigates the attack without impacting genuine requests?

Answer options

• A. IP address filtering at the application layer
• B. traffic routing on the network perimeter
• C. API rate limiting at the application layer
• D. firewall on the network perimeter

Correct answer: C

Explanation

API rate limiting at the application layer is the correct choice because it restricts the number of requests a client can make in a given time frame, effectively mitigating DDoS attacks while still allowing legitimate traffic. The other options, while they can help with security, either do not specifically address the issue of DDoS mitigation in a way that protects genuine requests or may inadvertently block valid traffic.