ANetwork ACL (Access Control List)is a stateless firewall that controls inbound and outbound traffic at the subnet level within a VPC. It provides an additional layer of security to the VPC by allowing or denying traffic to and from a subnet based on defined rules.
A. Security group: Incorrect, as security groups act as a firewall at the instance level, not the subnet level.
C. Elastic network interface: Incorrect, as it is a virtual network interface that you can attach to an instance, not a firewall feature.
D. AWS WAF: Incorrect, as it is a web application firewall that protects web applications from common exploits, not for subnet-level protection.
AWS Cloud References:
Network ACLs
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