Answer: Amazon Route 53

The correct answer is B, Amazon Route 53. Amazon Route 53 is a highly available and scalable Domain Name System (DNS) web service provided by AWS. It allows users to register domain names and manage DNS records, which is essential for directing traffic to applications running on AWS or on-premises. Additionally, Route 53 offers health checks to monitor the availability and performance of resources, ensuring a reliable user experience. The other options, such as AWS Direct Connect, Amazon CloudFront, and Amazon API Gateway, serve different purposes and do not provide the combination of domain registration, DNS routing, and health checks that Route 53 offers.

Author: LeetQuiz Editorial Team