--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6990970636 dns-udp-queries-received-ipv6: 954295092 dns-tcp-queries-received-ipv4: 483144528 dns-tcp-queries-received-ipv6: 93029305 dns-udp-responses-sent-ipv4: 6552258695 dns-udp-responses-sent-ipv6: 893736735 dns-tcp-responses-sent-ipv4: 307836435 dns-tcp-responses-sent-ipv6: 60704397