--- version: rssac002v3 service: j.root-servers.net start-period: '2018-07-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5715048366 dns-udp-queries-received-ipv6: 540382611 dns-tcp-queries-received-ipv4: 289703251 dns-tcp-queries-received-ipv6: 18914354 dns-udp-responses-sent-ipv4: 5504072586 dns-udp-responses-sent-ipv6: 532813091 dns-tcp-responses-sent-ipv4: 224527772 dns-tcp-responses-sent-ipv6: 19007342