--- version: rssac002v3 service: a.root-servers.net start-period: '2019-03-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5782655641 dns-udp-queries-received-ipv6: 862416116 dns-tcp-queries-received-ipv4: 225187626 dns-tcp-queries-received-ipv6: 40780657 dns-udp-responses-sent-ipv4: 5647640440 dns-udp-responses-sent-ipv6: 861908285 dns-tcp-responses-sent-ipv4: 221951291 dns-tcp-responses-sent-ipv6: 41123561