--- version: rssac002v3 service: a.root-servers.net start-period: '2019-05-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5344776313 dns-udp-queries-received-ipv6: 865921266 dns-tcp-queries-received-ipv4: 157769134 dns-tcp-queries-received-ipv6: 26614243 dns-udp-responses-sent-ipv4: 5224297501 dns-udp-responses-sent-ipv6: 865420725 dns-tcp-responses-sent-ipv4: 154788871 dns-tcp-responses-sent-ipv6: 27213309