What are NAT Gateways?

NAT stands for Network Address Translation. It is an aws service that enables to connect an EC2 instance in private subnet to the internet or other AWS services. For an AWS interview question about NAT Gateways, the correct answer would be: NAT Gateways, or Network Address Translation Gateways, are managed network devices provided by Amazon … Read more

What is VPC peering connection?

A VPC peering connection is a networking connection that allows you to connect one VPC with another VPC through a direct network route using private IP addresses. By using VPC peering connection, instances in different VPC can communicate with each other as if they were in the same network. You can peer VPCs in the … Read more

What is VPC?

VPC stands for Virtual Private Cloud. It is an isolated area of the AWS cloud where you can launch AWS resources in a virtual network that you define. It provides a complete control on your virtual networking environment such as selection of an IP address, creation of subnets, configuration of route tables and network gateways. … Read more

What is a Load Balancer?

Load Balancer is a virtual machine that balances your web application load that could be Http or Https traffic that you are getting in. It balances a load of multiple servers so that no web server gets overwhelmed. A Load Balancer is a critical component in cloud computing and network architecture. Its primary function is … Read more

How many Elastic IPs can you create?

5 elastic IP addresses that you can create per AWS account per region. The correct answer to the question “How many Elastic IPs can you create?” depends on the AWS service limits, which can vary depending on your AWS account status and region. However, as of my last update, AWS imposes a default limit of … Read more