--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3841637427 dns-udp-queries-received-ipv6: 404253255 dns-tcp-queries-received-ipv4: 91132731 dns-tcp-queries-received-ipv6: 12970656 dns-udp-responses-sent-ipv4: 3838510517 dns-udp-responses-sent-ipv6: 404210421 dns-tcp-responses-sent-ipv4: 91643572 dns-tcp-responses-sent-ipv6: 13124519