--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6787863256 dns-udp-queries-received-ipv6: 891464938 dns-tcp-queries-received-ipv4: 369661256 dns-tcp-queries-received-ipv6: 92277821 dns-udp-responses-sent-ipv4: 6450202653 dns-udp-responses-sent-ipv6: 839587618 dns-tcp-responses-sent-ipv4: 257453854 dns-tcp-responses-sent-ipv6: 64814831