Internet Gateway for public access in AWS - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create an Internet Gateway resource in AWS CloudFormation.

AWS

Resources:
  MyInternetGateway:
    Type: [1]

Drag options to blanks, or click blank then click option'

AAWS::EC2::InternetGateway

BAWS::EC2::Subnet

CAWS::S3::Bucket

DAWS::EC2::VPC

Attempts:

3 left

💡 Hint

Common Mistakes

Using VPC or Subnet resource types instead of Internet Gateway.

Confusing S3 bucket resource with networking resources.

The Internet Gateway resource type in AWS CloudFormation is AWS::EC2::InternetGateway. This creates an Internet Gateway for public access.

2fill in blank

medium

Complete the code to attach the Internet Gateway to a VPC.

AWS

Resources:
  AttachGateway:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties:
      VpcId: [1]
      InternetGatewayId: !Ref MyInternetGateway

Drag options to blanks, or click blank then click option'

AMySubnet

BMySecurityGroup

CMyRouteTable

DMyVPC

Attempts:

3 left

💡 Hint

Common Mistakes

Using Subnet or Security Group IDs instead of VPC ID.

Confusing Route Table with VPC.

The VpcId property must reference the VPC resource ID to attach the Internet Gateway correctly.

3fill in blank

hard

Fix the error in the route table to enable public internet access through the Internet Gateway.

AWS

Resources:
  PublicRoute:
    Type: AWS::EC2::Route
    Properties:
      RouteTableId: !Ref PublicRouteTable
      DestinationCidrBlock: [1]
      GatewayId: !Ref MyInternetGateway

Drag options to blanks, or click blank then click option'

A192.168.1.0/24

B0.0.0.0/0

C10.0.0.0/16

D255.255.255.0

Attempts:

3 left

💡 Hint

Common Mistakes

Using private IP ranges instead of 0.0.0.0/0.

Using subnet masks instead of CIDR notation.

The destination CIDR block 0.0.0.0/0 routes all internet traffic through the Internet Gateway, enabling public access.

4fill in blank

hard

Fill both blanks to define a public subnet with a route to the Internet Gateway.

AWS

Resources:
  PublicSubnet:
    Type: AWS::EC2::Subnet
    Properties:
      VpcId: [1]
      CidrBlock: 10.0.1.0/24
  PublicRoute:
    Type: AWS::EC2::Route
    Properties:
      RouteTableId: !Ref PublicRouteTable
      DestinationCidrBlock: [2]
      GatewayId: !Ref MyInternetGateway

Drag options to blanks, or click blank then click option'

AMyVPC

BMySubnet

C0.0.0.0/0

D10.0.0.0/16

Attempts:

3 left

💡 Hint

Common Mistakes

Using subnet ID instead of VPC ID for subnet property.

Using private CIDR blocks for route destination.

The subnet must belong to the VPC (MyVPC), and the route destination for internet traffic is 0.0.0.0/0.

5fill in blank

hard

Fill all three blanks to create an Internet Gateway, attach it to a VPC, and add a route for public access.

AWS

Resources:
  InternetGateway:
    Type: [1]
  AttachGateway:
    Type: AWS::EC2::VPCGatewayAttachment
    Properties:
      VpcId: [2]
      InternetGatewayId: !Ref InternetGateway
  PublicRoute:
    Type: AWS::EC2::Route
    Properties:
      RouteTableId: !Ref PublicRouteTable
      DestinationCidrBlock: [3]
      GatewayId: !Ref InternetGateway

Drag options to blanks, or click blank then click option'

AAWS::EC2::InternetGateway

BMyVPC

C0.0.0.0/0

DAWS::EC2::Subnet

Attempts:

3 left

💡 Hint

Common Mistakes

Using subnet resource type instead of Internet Gateway.

Using subnet ID instead of VPC ID for attachment.

Using private CIDR blocks instead of 0.0.0.0/0 for route.

The Internet Gateway resource type is AWS::EC2::InternetGateway. It must be attached to the VPC MyVPC. The route destination for internet traffic is 0.0.0.0/0.