--- version: rssac002v3 service: j.root-servers.net start-period: '2018-12-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6669477798 dns-udp-queries-received-ipv6: 805552769 dns-tcp-queries-received-ipv4: 425667316 dns-tcp-queries-received-ipv6: 63658907 dns-udp-responses-sent-ipv4: 6194657108 dns-udp-responses-sent-ipv6: 762846848 dns-tcp-responses-sent-ipv4: 274631501 dns-tcp-responses-sent-ipv6: 42707708