Q:

Associating route 53 Nameservers with GoDaddy

I am using GoDaddy as domain, & AWS for instances. I have created route 53, & it generated four DNS. should I replace the two default GoDaddy DNS with route 53? or I add four AWS DNS & also keep two DNS of GoDaddy?
how can I prevent Downtime with Fail-safe settings?

A:

To prevent downtime, first copy all DNS entries from GoDaddy to Route53. 
To switch from using GoDaddy DNS name servers to Route53, in your GoDaddy account delete the 2 Name Server entries provided by GoDaddy, and add the 4 AWS name servers.

