--- version: rssac002v3 service: j.root-servers.net start-period: '2018-03-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4441034814 dns-udp-queries-received-ipv6: 353965158 dns-tcp-queries-received-ipv4: 177446002 dns-tcp-queries-received-ipv6: 15405493 dns-udp-responses-sent-ipv4: 4331662294 dns-udp-responses-sent-ipv6: 352092433 dns-tcp-responses-sent-ipv4: 145607340 dns-tcp-responses-sent-ipv6: 15511132