Legit SAA-C03 Exam Download

TheGateway Load Balancer (GWLB)is specifically designed to route traffic through a security appliance in a hub-and-spoke model, making it the ideal solution for inspecting traffic between multiple AWS accounts. GWLB enables you to simplify, scale, and deploy third-party virtual appliances transparently, and it can work across multiple VPCs or accounts using interface endpoints (Gateway Load Balancer Endpoints).

Key AWS features:

Traffic Inspection: The GWLB allows the centralized security appliance to inspect traffic between different VPCs, making it suitable for inspecting inter-account interactions.

Interface VPC Endpoints: By using interface endpoints in the application accounts, traffic can securely and efficiently be routed to the security appliance in the networking account.

AWS Documentation: The use of GWLB aligns with AWS’s best practices for centralized network security, simplifying architecture and reducing operational complexity​.

Comprehensive and Detailed Explanation From Exact Extract of Amazon Web Services (AWS) Architect documents:

EBS Elastic Volumes allow you to dynamically increase volume size, adjust performance, and change volume types without detaching the volume or restarting the instance, providing a cost-efficient and operationally simple solution.

"Amazon EBS Elastic Volumes allows you to easily adapt your volumes as your needs change. You can increase volume size, adjust performance, or change the volume type while the volume is in use."

— EBS Elastic Volumes Documentation

Why D is cost-effective:

You only pay for provisioned storage, and it can be adjusted on demand.

Lambda can be triggered to adjust the volume based on the user's input.

Incorrect Options:

A: S3 is object storage, not block storage.

B & C: EFS and FSx are network file systems—not appropriate for EBS replacement in EC2 block-level requirements and are more costly for block-type needs.

Amazon RDS Proxy is designed to manage a large number of database connections from applications, especially serverless applications that can scale quickly. It improves application availability and scalability by pooling and sharing established database connections. This reduces the overhead of database connections and prevents overload during traffic spikes.

To protect against a Regional failure, the application must be deployed in multiple Regions. Amazon Route 53 DNS failover with health checks allows traffic to be automatically routed to a healthy Region when the primary becomes unavailable, meeting high availability and disaster recovery requirements.