@ IN SOA clientDNS.uccs.edu. root.clientnet.csnet.uccs.edu. ( 1 ; Serial 3h ; Refresh after 3 hours 1h ; Retry after 1 hour 1w ; Expire after 1 week 1h ; Negative caching TTL of 1 hour ) IN NS targetdns.targetnet.csnet.uccs.edu. IN NS targetdns2.targetnet.csnet.uccs.edu. targetdns.targetnet.csnet.uccs.edu. 86400 IN A 128.198.60.190 targetdns.targetnet.csnet.uccs.edu. 86400 IN ALT 128.198.61.100 targetdns2.targetnet.csnet.uccs.edu. 86400 IN A 128.198.60.191 targetdns2.targetnet.csnet.uccs.edu. 86400 IN ALT 128.198.61.100