A company deploys an internal website behind an Application Load Balancer (ALB) in a VPC.

Create an alias record that points to the ALB in the Route 53 private hosted zone.

Create a CNAME record that points to the ALB internal domain in the Route 53 private hosted zone.

Create a Route 53 Resolver inbound endpoint. On the office DNS server, configure a conditional forwarder to forward the DNS queries to the Route 53 Resolver inbound endpoint.

Create a Route 53 Resolver outbound endpoint. On the office DNS server, configure a conditional forwarder to forward the DNS queries to the Route 53 Resolver outbound endpoint.

On the office DNS server, configure a conditional forwarder for the private domain to the VPC DNS at 172.31.0.2.