Varun's response provides a general overview of how connection stability and data security can be maintained, mentioning checks, authorization, and tokens. However, the response lacks specific details about the project and the implementation of MQTT or HTTP protocols. To improve, Varun should provide more concrete examples of how he has applied these protocols in past projects, similar to the benchmark response, which includes details about IoT sensors, environmental monitoring, TLS encryption, and MQTT's QoS levels.