--- version: rssac002v3 service: i.root-servers.net start-period: '2019-02-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6105844422 dns-udp-queries-received-ipv6: 1275484410 dns-tcp-queries-received-ipv4: 142226560 dns-tcp-queries-received-ipv6: 30201377 dns-udp-responses-sent-ipv4: 5958758217 dns-udp-responses-sent-ipv6: 1258634936 dns-tcp-responses-sent-ipv4: 136286510 dns-tcp-responses-sent-ipv6: 28209843