Amazon
CLF-C02 · Question #822
Which AWS service or feature acts as a firewall for Amazon EC2 instances?
The correct answer is D. Security group. A security group is a virtual firewall that controls inbound and outbound traffic for an Amazon EC2 https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html
Submitted by andres_qro· Mar 6, 2026Security and Compliance
Question
Which AWS service or feature acts as a firewall for Amazon EC2 instances?
Options
- ANetwork ACL
- BElastic network interface
- CAmazon VPC
- DSecurity group
How the community answered
(23 responses)- B4% (1)
- C9% (2)
- D87% (20)
Explanation
A security group is a virtual firewall that controls inbound and outbound traffic for an Amazon EC2 https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/ec2-security-groups.html
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