Reasons for Unable to Create Additional Internet Gateway in AWS VPCs
Question
You have created 5 VPC's in the Ireland region and attached an Internet gateway to them.
When you try to create another Internet gateway, you are not able to do so.
Which of the following could be a reason for this.
Answers
Explanations
Click on the arrows to vote for the correct answer
A. B. C. D.Answer - D.
The below snapshot from the AWS documentation shows the limitation.
Also remember that there is the default gateway already created which is part of the default VPC.For more information on the limits,please refer to the below URL:
http://docs.aws.amazon.com/AmazonVPC/latest/UserGuide/VPC_Appendix_Limits.html#vpc-limits-gateways
The correct answer is D. You have crossed the threshold of 5 internet gateways.
Each Amazon Virtual Private Cloud (VPC) can be associated with only one internet gateway at a time. Therefore, when you create a new internet gateway, it needs to be associated with a VPC that doesn't have any other internet gateway associated with it. In this scenario, you have already attached an internet gateway to 5 different VPCs in the Ireland region, which means that you have already reached the maximum limit of internet gateways per region per account, which is 5. This is why you are not able to create another internet gateway in this region.
Option A is incorrect because you have already created 5 VPCs and attached an internet gateway to them, which indicates that you have created VPCs before creating internet gateways.
Option B is incorrect because all VPCs can have an internet gateway associated with them, regardless of whether they are public or private subnets.
Option C is incorrect because the maximum limit for internet gateways per region per account is 5, and you have already created 5 internet gateways, which means you have crossed the threshold of internet gateways that can be created in a single region.