Microsoft Azure Administrator Associate AZ-104 Practice Question

To allow users on the internet to access 'app.contoso.com', you need to create an A record in the 'contoso.com' zone that maps 'app' to the public IP address of the virtual machine. An A record associates a domain name with an IPv4 address, enabling clients to resolve the domain name to the address of the web application. A CNAME record cannot point directly to an IP address; it aliases one domain name to another domain name. NS records are used to delegate a subdomain to different name servers, and MX records are used for email routing. Therefore, creating an A record is the appropriate action.