Hi, acloud.guru maintainers,
I was checking AWS NAT instances documentation at https://docs.aws.amazon.com/vpc/latest/userguide/VPC_NAT_Instance.html, and there’s a big disclaimer that (kind of) discourages its use:
"NAT AMI is built on the last version of Amazon Linux, 2018.03, which reached the end of standard support on December 31, 2020. (…) If you use an existing NAT AMI, AWS recommends that you migrate to a NAT gateway."
Although I am not sure how this reflects on the exam questions, I believe this video would be updated with this information.