To protect your AWS resources from being accessed by unauthorized users from the internet, you want to implement a solution that requires 'Multi-Factor Authentication' (MFA) and restricts access based on the user's source IP address. Which identity feature should you use?

You are designing a serverless microservices architecture for a new startup. The application needs to handle unpredictable traffic spikes without managing any underlying infrastructure. Which compute service should you use?

A financial application requires a relational database that supports high availability and automated backups. The database must be fully managed to reduce operational overhead. Which service fits these requirements?

You need to host a static website (HTML, CSS, JS) with the lowest possible cost and high durability. You do not need server-side processing. Which storage solution should you choose?

Your media company streams video content to users globally. Users in different regions are experiencing high latency. You need to improve performance by caching content closer to the users. Which service should you implement?

Your public-facing web application is under a Distributed Denial of Service (DDoS) attack. You need a managed service to detect and mitigate these attacks automatically. What should you enable?