--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6713720960 dns-udp-queries-received-ipv6: 852141703 dns-tcp-queries-received-ipv4: 442857691 dns-tcp-queries-received-ipv6: 63821254 dns-udp-responses-sent-ipv4: 6231502230 dns-udp-responses-sent-ipv6: 807833005 dns-tcp-responses-sent-ipv4: 286678828 dns-tcp-responses-sent-ipv6: 43192547