--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5074176902 dns-udp-queries-received-ipv6: 377792727 dns-tcp-queries-received-ipv4: 117722164 dns-tcp-queries-received-ipv6: 12673096 dns-udp-responses-sent-ipv4: 5072506402 dns-udp-responses-sent-ipv6: 377774446 dns-tcp-responses-sent-ipv4: 118086419 dns-tcp-responses-sent-ipv6: 12831906