Security, Identity, and Compliance
CoreInternet gateways
Explicit VPC internet-route configuration and troubleshooting.
Key points
- An internet gateway is part of a public VPC route and does not by itself supply addressing or filter permission.
Best-known use cases
- D4.1, D4.2, and D5.1: configure or troubleshoot the named public internet path through its address, route, and filters.
What candidates often confuse it with
- An internet gateway supports public routing; NAT provides private IPv4 egress and egress-only gateways provide outbound-only IPv6.
Key takeaway
A public path requires the complete address, route, gateway, filter, and return configuration.
Related services
- AWS Certificate Manager (ACM)
- Amazon EC2 security groups
- Egress-only internet gateways
Relevant exam tasks
- D4.1 — Task 4.1: Implement and manage security and compliance tools and policies.
- 4.1.1 — Implement IAM features (for example, password policies, multi-factor authentication [MFA], roles, federated identity, resource policies, policy conditions).
- D4.2 — Task 4.2: Implement strategies to protect data and infrastructure.
- 4.2.1 — Implement and enforce a data classification scheme.
- D5.1 — Task 5.1: Implement and optimize networking features and connectivity.
- 5.1.1 — Configure a VPC (for example, subnets, route tables, network ACLs, security groups, NAT gateways, internet gateway, egress-only internet gateway).