Exam AWS-Solutions-Architect-Professional Topic 1 Question 166 Discussion

Actual exam question for Amazon's AWS-Solutions-Architect-Professional exam
Question #: 166
Topic #: 1
Doug has created a VPC with CIDR 10.201.0.0/16 in his AWS account. In this VPC he has created a
public subnet with CIDR block 10.201.31.0/24. While launching a new EC2 from the console, he is not
able to assign the private IP address 10.201.31.6 to this instance. Which is the most likely reason for this
issue?

Suggested Answer: A Vote an answer

In Amazon VPC, you can assign any Private IP address to your instance as long as it is:
Part of the associated subnet's IP address range
Not reserved by Amazon for IP networking purposes
Not currently assigned to another interface
Reference: http://aws.amazon.com/vpc/faqs/

by Horace at Dec 19, 2025, 07:05 PM

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