In a VPC, security groups can be configured with deny rules to block traffic from specific IP addresses.
True.
False.
This statement is false. Security groups in AWS act as virtual firewalls for your instances to control inbound and outbound traffic. They support only allow rules with an implicit deny if no explicit statement is present for a given address or range; you cannot create deny rules in security groups. To block traffic from specific IP addresses, you would use Network Access Control Lists (ACLs) instead, which support both allow and deny rules and operate at the subnet level.
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