--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4868338008 dns-udp-queries-received-ipv6: 720738252 dns-tcp-queries-received-ipv4: 129279639 dns-tcp-queries-received-ipv6: 26000927 dns-udp-responses-sent-ipv4: 4754536107 dns-udp-responses-sent-ipv6: 720299579 dns-tcp-responses-sent-ipv4: 126596545 dns-tcp-responses-sent-ipv6: 26123899