Which AWS service can defend against DDoS attacks?

Explanations:

AWS Firewall Manager is a security management service that allows you to centrally configure and manage firewall rules across your AWS organization but does not specifically defend against DDoS attacks.

AWS Shield Standard is a managed DDoS protection service that provides automatic protection against DDoS attacks for all AWS customers, offering layers of defense at no additional cost.

AWS WAF (Web Application Firewall) protects web applications from common web exploits but does not specifically focus on defending against DDoS attacks, although it can help mitigate certain types of attacks.

Amazon Inspector is a security assessment service that helps improve the security and compliance of applications deployed on AWS. It does not provide DDoS protection.