--- version: rssac002v3 service: a.root-servers.net start-period: '2019-08-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6106016768 dns-udp-queries-received-ipv6: 1295860246 dns-tcp-queries-received-ipv4: 201386045 dns-tcp-queries-received-ipv6: 33809263 dns-udp-responses-sent-ipv4: 5973664627 dns-udp-responses-sent-ipv6: 1295039983 dns-tcp-responses-sent-ipv4: 196789187 dns-tcp-responses-sent-ipv6: 34801561