--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3661935398 dns-udp-queries-received-ipv6: 560432378 dns-tcp-queries-received-ipv4: 109474673 dns-tcp-queries-received-ipv6: 20435344 dns-udp-responses-sent-ipv4: 3567936470 dns-udp-responses-sent-ipv6: 560109592 dns-tcp-responses-sent-ipv4: 105969979 dns-tcp-responses-sent-ipv6: 20474592