Explanation:
Security groups in a VPC act as virtual firewalls for EC2 instances, controlling both inbound and outbound traffic at the instance level.
Which of the following best describes the use of security groups in a VPC?
A
To blacklist IP addresses that pose security threats
B
To act as virtual firewalls for your EC2 instances to control inbound and outbound traffic
C
To provide a VPN gateway for secure connections
D
To monitor and control the flow of internal traffic within the VPC
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