--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7811571216 dns-udp-queries-received-ipv6: 1162112322 dns-tcp-queries-received-ipv4: 496558705 dns-tcp-queries-received-ipv6: 177362098 dns-udp-responses-sent-ipv4: 7325455920 dns-udp-responses-sent-ipv6: 1027225953 dns-tcp-responses-sent-ipv4: 385867016 dns-tcp-responses-sent-ipv6: 108286201