--- version: rssac002v3 service: j.root-servers.net start-period: '2019-05-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6768562116 dns-udp-queries-received-ipv6: 1150803014 dns-tcp-queries-received-ipv4: 645069475 dns-tcp-queries-received-ipv6: 74544305 dns-udp-responses-sent-ipv4: 6154821397 dns-udp-responses-sent-ipv6: 1107573566 dns-tcp-responses-sent-ipv4: 449597936 dns-tcp-responses-sent-ipv6: 54655168