--- version: rssac002v3 service: a.root-servers.net start-period: '2019-03-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5762813171 dns-udp-queries-received-ipv6: 849021388 dns-tcp-queries-received-ipv4: 213225227 dns-tcp-queries-received-ipv6: 34305272 dns-udp-responses-sent-ipv4: 5631517028 dns-udp-responses-sent-ipv6: 848506028 dns-tcp-responses-sent-ipv4: 208661177 dns-tcp-responses-sent-ipv6: 34632901