AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 346

A VPC is deployed with a 10.0.0.0/16 CIDR block. The engineering team is reviewing DHCP options, and there is disagreement about the valid DNS addresses available for the VPC.
Which addresses are valid IP addresses provided by Amazon for this subnet? (Choose two.)

Answer options

Correct answer: B, D

Explanation

Amazon provides the Route 53 Resolver at the VPC IP address range start plus two, which is 10.0.0.2 for a 10.0.0.0/16 VPC, as well as at the link-local address 169.254.169.253. The address 169.254.169.254 is reserved for the Instance Metadata Service (IMDS) rather than DNS, while 8.8.8.8 is a public DNS service external to AWS.