Now as the for question of what is a Default VPC and what are the advantages of using it?

As you learned this week, a virtual private cloud (VPC) enables you to launch resources into a virtual network that you’ve configured and gives you full control over those resources. That provides a level of security over a public cloud when you need to control your resources and sensitive data over a virtual infrastructure. But VPCs also have drawbacks, including increased configuration complexity.

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CLASSMATE 1 MICHAEL

This week’s topic on Amazon VPCs was interesting because at one point it use to be the only option. Having a VPC gives a company full control over their cloud resources but it also adds some necessary complexities. The main components for a AWS VPC include:

• Subnets – Divide the VPC into smaller sections.

• Route Tables – Control traffic flow.

• Internet & NAT Gateways – Enable internet access while keeping private resources secure.

• Security Groups & Network ACLs – Firewalls for traffic control.

• Elastic IPs – Keep static IPs for resources.

Now as the for question of what is a Default VPC and what are the advantages of using it? The Default VPC is AWS’s pre-configured network, that makes it easier to launch instances with internet access. It comes with a public subnet in each region. Along, with an internet gateway already attached and pre-set route tables and security settings for quick setup. The default VPC is know too be great for beginners or quick deployments, but custom VPCs offer more security and flexibility overall.

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A few Amazon VPC components consist of:

Subnets- Range of IP addresses that divide a VPC, can be classified as private or public pending on the IP range.

Sharing- which allows customers to share subnets with other AWS accounts in the same AWS organizations

Peering- enables you to route traffic between them privately. This allows them to communicate as if they were in the same network regardless of location and account.

Elastic IP – which is a public static IP address reserved for cloud computing.

Route table – contains set of rules that allows you to direct network traffic from the subnet.

Transit Gateway – simplifies the connection of having multiple VPC connections due to them being only P2P. This is when Transit gateway is inserted and only need to manage one central connection from the central gateway into the VPC, on premises data center, or remote office across the network.

All of these components are critical when having a VPC because it allows you to have a network with what you need. Most of the resources used with the VPC provide you with IP address for connectivity. A benefit of VPC is that it gives you control over virtual networking resources.

Default VPC and advantages

Default VPC comes with a public subnet in each availability zone, a CIDR block and consist of a route table for traffic. In this VPC you are unable to detach the primary network instance you can only create and attach additional network interfaces. Advantages of a default VPC is not having to create it which can be a hassle especially if you are unsure on what is required. A prime example of this headache save would be the transit gateway, since the connectivity for that is point to point having to adjust more VPC connections when creating another VPC would cause headaches for companies that deal with more resources.

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