Interview Q&A / AWS & Cloud

INTERVIEW Q&A · 60 QUESTIONS

AWS & Cloud interview questions

EC2, S3, Lambda, IAM and VPC basics, with when to pick which service.

  1. What is a VPC, and what is the difference between public and private subnets?

    A VPC is your own private network inside AWS. A public subnet has a route to an internet gateway, so resources with public IPs can be reached from the internet. A private subnet has no such route; its servers reach the internet only outbound, through a NAT gateway placed in a public subnet.

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