When designing a scalable and secure AWS architecture, understanding the difference between public and private subnets is a crucial consideration. Your network's functionality, resiliency, and overall security largely depend on how you configure these subnets.

Whether you’re a freshman or an AWS professional, having a clear view of this conception is pivotal. Likewise, education platforms offering AWS Classes in Pune or AWS Training in Pune frequently concentrate on these fundamentals to help you learn effectively.

What Are Subnets in AWS?

A subnet is a range of IP addresses within a VPC (Virtual Private Cloud). It lets you organize and partition your coffers based on their places and security conditions. AWS lets you produce multiple subnets within a VPC, each designated as public or private.

Public Subnet Explained

A public subnet is a subnet that has a direct route to the internet gateway, allowing coffers within it to communicate directly with the internet. EC2 instances in a public subnet generally have public IP addresses, making them accessible from outside the AWS network.

For illustration:

✅ Use cases
Web waiters
Fortification hosts
Operation cargo balancers

✅ Business inflow
Business from the internet reaches these coffers directly, and responses flow back through the internet gateway.

✅ Security consideration
Because coffers in a public subnet are exposed to the internet, it's pivotal to apply proper security controls, such as Security Groups and Network ACLs.

Private Subnet Explained

A private subnet is a subnet that has no direct route to the Internet. EC2 cases in a private subnet generally have only private IP addresses, which makes them unobtainable directly from the outside world.

For illustration:

✅ Use cases
Databases
Operation waiters
Back-end factors

✅ Business inflow
Business fated for coffers in a private subnet must pass through a NAT gateway or fortification host if it needs to connect to the internet (for software patches or API calls).

✅ Security consideration
Private subnets add a layer of security by reducing the attack surface and segregating cores from direct internet exposure.

Summary — Why It Matters

Designing your AWS architecture with a combination of public and private subnets lets you balance availability and security. Public subnets enable you to expose only those factors that need direct internet reach (like a cargo balancer), while keeping databases and backends safely hidden in private subnets.

To learn further about designing AWS networking, you might consider the AWS Course in Pune — a great way to pursue instruments and hands-on knowledge. Also, if you want a further comprehensive view, check this affiliated composition: What are Amazon Web Services?