Check DNS Server Automatic AND Check Use the following DNS server address(es)

On a Surf SOHO (Frimware 7.0.0 build 1139), under the WAN Settings, when both “Obtain DNS server address automatically” and “Use the following DNS server address(es)” are checked, does Pepwave just work its way down the list of the 4 DNS server IP addresses? (I really don’t want anything to do with my ISP’s DNS server, so I currently have just (Norton) and (Comodo) specified.)