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Which AWS service provides inbound and outbound network ACLs to restrict connectivity to Amazon EC2 instances?
A
AWS Identity and Access Management (IAM)
B
Amazon Connect
C
Amazon VPC
D
Amazon API Gateway
Explanation:
Amazon VPC (Virtual Private Cloud) provides network ACLs (Access Control Lists) that act as a firewall for controlling traffic in and out of subnets. Network ACLs are stateless and operate at the subnet level, allowing you to define both inbound and outbound rules to restrict connectivity to Amazon EC2 instances.
Key points about VPC Network ACLs:
Operate at the subnet level
Are stateless (inbound and outbound rules are evaluated separately)
Can allow or deny traffic based on IP addresses, protocols, and ports
Provide an additional layer of security along with security groups
Other options explained:
AWS IAM: Manages user access and permissions to AWS services, not network connectivity
Amazon Connect: A cloud-based contact center service
Amazon API Gateway: A service for creating, publishing, and managing APIs