--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4132853374 dns-udp-queries-received-ipv6: 593540130 dns-tcp-queries-received-ipv4: 119062159 dns-tcp-queries-received-ipv6: 23743730 dns-udp-responses-sent-ipv4: 4041709626 dns-udp-responses-sent-ipv6: 592962202 dns-tcp-responses-sent-ipv4: 116435713 dns-tcp-responses-sent-ipv6: 23884981