So we have a global domain of example.com being and the DNS is managed on AWS Route 53.
I have a subdomain: sub.example.com
I want to be able to setup DNS failover using a different Route 53 account entirely.
Would I just go to the main DNS of example.com and create a Name Server record for sub.example.com pointing to the different name servers provided in Route 53 from the second account? This should allow me to manage the DNS for this subdomain within the secondary Route 53 account right?