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Top DevOps/SRE Interview Questions and Answers on AWS VPC
- What is AWS VPC (Virtual Private Cloud)?
AWS VPC: A Virtual Private Cloud (VPC) is a logically isolated section of AWS that you can use to launch AWS resources in a virtual network. It gives full control over network configuration, including IP address ranges, subnets, route tables, and network gateways.
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2. How does VPC peering work, and what are the primary use cases and limitations for using VPC peering connections in Amazon VPC?
VPC peering is a networking connection between two Amazon VPCs, enabling private communication across AWS accounts or regions. It establishes a direct network route using private IP addresses, maintaining security and isolation.
Primary use cases include:
1. Resource sharing: Access resources like databases or applications in another VPC.
2. Consolidated management: Centralize monitoring/logging services for multiple VPCs.
3. Workload separation: Isolate different environments (e.g., development, production) while allowing secure communication.
Limitations include:
1. No transitive peering: Direct connections only; must create separate peering for indirect communication.
2. Overlapping CIDR blocks: Not allowed…
