56. Click Edit . 57. In the Change to: drop-down list, click Public Route Table . 58. Click Save . Public Subnet 2 is now a Public Subnet that can communicate directly with the Internet. Task 5.2: Create a Second Private Subnet Your application will be deployed in private subnets for improved security. This prevents direct access from the Internet to the instances. To be highly available, you require a second Private Subnet. 59. Click Create Subnet . 60. In the Create Subnet dialog box, configure the following: 61.