--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4347840191 dns-udp-queries-received-ipv6: 667852466 dns-tcp-queries-received-ipv4: 111003070 dns-tcp-queries-received-ipv6: 25745614 dns-udp-responses-sent-ipv4: 4228727105 dns-udp-responses-sent-ipv6: 667509292 dns-tcp-responses-sent-ipv4: 108125855 dns-tcp-responses-sent-ipv6: 25821121