--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6147159832 dns-udp-queries-received-ipv6: 1291891637 dns-tcp-queries-received-ipv4: 172285351 dns-tcp-queries-received-ipv6: 32745529 dns-udp-responses-sent-ipv4: 6009829098 dns-udp-responses-sent-ipv6: 1290637330 dns-tcp-responses-sent-ipv4: 167858737 dns-tcp-responses-sent-ipv6: 33415216