Answer: AWS Shield

AWS Shield is the correct answer as it is specifically designed to protect against Distributed Denial of Service (DDoS) attacks. It provides automatic detection and mitigation of DDoS attacks on AWS resources such as Amazon EC2 instances, Elastic Load Balancers, and Amazon CloudFront distributions. The other options are incorrect for the following reasons: Amazon Inspector is a security assessment service, Amazon GuardDuty is a threat detection service, and Amazon Detective is used to investigate the root cause of security issues. These services do not provide protection against DDoS attacks.

Author: LeetQuiz Editorial Team