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If you're working with AWS VPCs, EC2, and network access control, knowing Security Groups and Network ACLs (NACLs) is essential — especially in interviews. Below are 15 practical scenario-based questions with answers, perfect for engineers with 1–2 years of experience. 1. ✅ You want to allow HTTP traffic into your EC2 instance. What Security Group rule do you add? Answer: Add an inbound rule allowing TCP port 80 from 0.0.0.0/0 in the Security Group attached to the instance. 2.
If you're working with AWS VPCs, EC2, and network access control, knowing Security Groups and Network ACLs (NACLs) is essential — especially in interviews. Below are 15 practical scenario-based questions with answers, perfect for engineers with 1–2 years of experience.
1. ✅ You want to allow HTTP traffic into your EC2 instance. What Security Group rule do you add?
Answer:
Add an inbound rule allowing TCP port 80 from 0.0.0.0/0 in the Security Group attached to the instance.
2.
