Correct Answer: ABTo handle millions of requests per second, a single replica would not suffice, as it would not be able to manage such a vast load. Therefore, setting the max replica count to 1 would likely result in extremely high latency or service disruptions. On the other hand, deploying an online Vertex AI prediction endpoint with a max replica count of 100 ensures that the system can scale to meet the high-demand periods efficiently. While this will incur higher costs during peak hours, it is necessary to meet the performance requirements. Additionally, you can dynamically scale down during off-peak hours to minimize costs, leveraging the scalability feature of Vertex AI.