Amazon Web Services SCS-C02 Exam With Confidence Using Practice Dumps

When implementing DNSSEC for a subdomain in Amazon Route 53 and encountering a broken trust chain error, creating a Delegation Signer (DS) record in the parent hosted zone is the correct approach. The DS record is essential for establishing the trust chain between the parent and child zones by linking the DNSSEC-signed subdomain to its parentdomain. This step is crucial for DNS resolvers to validate the authenticity of DNS responses, thereby resolving the broken trust chain issue and ensuring the integrity and authenticity of the DNS data for the secured subdomain.

To improve the security at the edge of the solution to defend against a large, layer 7 DDoS attack, the security engineer should do the following:

Configure AWS WAF with a rate-based rule that imposes a rate limit that automatically blocks requests when the rate limit is exceeded. This allows the security engineer to use a rule that tracks the number of requests from a single IP address and blocks subsequent requests if they exceed a specified threshold within a specified time period.

Enable GuardDuty:

GuardDuty provides monitoring for EKS clusters by analyzing EKS audit logs.

Automatic Configuration:

No additional setup for the EKS deployment is needed. GuardDuty directly monitors API calls to detect suspicious or unauthenticated access.

Advantages:

Minimal Effort: No operational overhead for configuration.

Proactive Detection: Alerts for unauthorized or suspicious activity in near-real-time.

Amazon GuardDuty for EKS

EKS Audit Log Monitoring