Creating a custom VPC in AWS - Quick Revision & Summary

Recall & Review

beginner

What is a VPC in AWS?

A VPC (Virtual Private Cloud) is like your own private network in the cloud where you can launch AWS resources securely and control network settings.

beginner

Why create a custom VPC instead of using the default one?

Creating a custom VPC lets you control IP ranges, subnets, route tables, and security settings tailored to your needs, unlike the default VPC which has preset configurations.

beginner

What is a subnet in a VPC?

A subnet is a smaller network inside your VPC that divides the IP address range into segments, helping organize and isolate resources.

beginner

What is the purpose of an Internet Gateway in a VPC?

An Internet Gateway allows resources in your VPC to connect to the internet and receive traffic from it.

intermediate

How do route tables work in a custom VPC?

Route tables control where network traffic is directed within your VPC and to outside networks, like the internet or other VPCs.

What is the first step when creating a custom VPC in AWS?

A Create an Internet Gateway

B Define the IP address range using CIDR notation

C Launch an EC2 instance

D Set up security groups

You start by defining the IP address range for your VPC using CIDR notation to specify the network size.

Which AWS component allows your VPC to access the internet?

A Internet Gateway

B NAT Gateway

C Route Table

D Security Group

An Internet Gateway connects your VPC to the internet, enabling inbound and outbound traffic.

What does a subnet do inside a VPC?

A Divides the VPC IP range into smaller networks

B Manages user permissions

C Stores data

D Controls internet access

A subnet splits the VPC's IP address range into smaller segments to organize resources.

Which of these is NOT a reason to create a custom VPC?

A Control IP address range

B Customize network security

C Automatically launch EC2 instances

D Define subnets and route tables

Launching EC2 instances is separate from creating a VPC; a custom VPC focuses on network setup.

What controls the flow of traffic between subnets and outside networks in a VPC?

A Elastic IPs

B Network ACLs

C Security Groups

D Route Tables

Route tables determine where network traffic is sent within and outside the VPC.

Explain the key components you need to set up when creating a custom VPC in AWS.

Think about the network parts that let your cloud resources communicate safely.

Describe how a custom VPC helps improve security and control compared to the default VPC.

Consider how having your own network setup can protect and organize your cloud resources.