An organization is transitioning its digital platform to AEMaaCS.

An organization is transitioning its digital platform to AEMaaCS. The lead architect is overseeing the transition and ensuring that the platform remains robust and offers a consistent user experience. The team has already performed general functionality tests. As the launch date approaches, the team is focusing on potential real-world challenges, such as the platform's behavior under high-user traffic and communicating with third-party services.

Which two types of testing should the architect prioritize next to ensure a seamless transition to AEMaaCS? (Choose two.)