--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4029832602 dns-udp-queries-received-ipv6: 612886547 dns-tcp-queries-received-ipv4: 107970823 dns-tcp-queries-received-ipv6: 20451727 dns-udp-responses-sent-ipv4: 3919685157 dns-udp-responses-sent-ipv6: 611984370 dns-tcp-responses-sent-ipv4: 104037762 dns-tcp-responses-sent-ipv6: 20467581