--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5158991156 dns-udp-queries-received-ipv6: 361598275 dns-tcp-queries-received-ipv4: 124448448 dns-tcp-queries-received-ipv6: 12431548 dns-udp-responses-sent-ipv4: 5157455544 dns-udp-responses-sent-ipv6: 361584903 dns-tcp-responses-sent-ipv4: 125548668 dns-tcp-responses-sent-ipv6: 12547735