--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6117560426 dns-udp-queries-received-ipv6: 817949675 dns-tcp-queries-received-ipv4: 438476577 dns-tcp-queries-received-ipv6: 68997470 dns-udp-responses-sent-ipv4: 5730342731 dns-udp-responses-sent-ipv6: 774430124 dns-tcp-responses-sent-ipv4: 278081136 dns-tcp-responses-sent-ipv6: 45169457