AWS Certified Solutions Architect – Professional — Question 794

A user has created a VPC with public and private subnets using the VPC wizard. Which of the below mentioned statements is true in this scenario?

Answer options

• A. The user has to manually create a NAT instance
• B. The Amazon VPC will automatically create a NAT instance with the micro size only
• C. VPC updates the main route table used with the private subnet, and creates a custom route table with a public subnet
• D. VPC updates the main route table used with a public subnet, and creates a custom route table with a private subnet

Correct answer: C

Explanation

When using the VPC wizard to create a VPC with public and private subnets, AWS associates the private subnet with the main route table and updates it, while creating a custom route table for the public subnet that points to the Internet Gateway. Option D is incorrect because it reverses this route table association. Options A and B are incorrect because the wizard can automatically provision a NAT gateway or NAT instance of various sizes, rather than requiring manual creation or restricting it only to a micro size.