--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4255950252 dns-udp-queries-received-ipv6: 651806777 dns-tcp-queries-received-ipv4: 109472441 dns-tcp-queries-received-ipv6: 25213860 dns-udp-responses-sent-ipv4: 4137407745 dns-udp-responses-sent-ipv6: 651487239 dns-tcp-responses-sent-ipv4: 106419624 dns-tcp-responses-sent-ipv6: 25285327