--- version: rssac002v3 service: a.root-servers.net start-period: '2019-03-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5130457230 dns-udp-queries-received-ipv6: 777172373 dns-tcp-queries-received-ipv4: 203409763 dns-tcp-queries-received-ipv6: 29550125 dns-udp-responses-sent-ipv4: 5016479514 dns-udp-responses-sent-ipv6: 776650129 dns-tcp-responses-sent-ipv4: 198756530 dns-tcp-responses-sent-ipv6: 29913961