Melania's company wants to ensure that their website is highly available and resistant to potential denial-of-service attacks. What type of solution would be best suited to this if the company operates an e-commerce site that serves multiple countries and regions with a very large number of customers?

Content distribution networks are used to both improve performance and reduce the impacts of denial-of-service attacks. Load-balanced server clusters may be part of the underlying design, but a CDN will more completely address Melania's needs at the scale described. Micro-segmentation is used to isolate systems and services, not to address multiregion content accessibility and denial-of-service issues. A VPC may be part of a solution, but nothing about a VPC makes it a sufficient solution on its own.