--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4390802683 dns-udp-queries-received-ipv6: 406632704 dns-tcp-queries-received-ipv4: 103935325 dns-tcp-queries-received-ipv6: 13225823 dns-udp-responses-sent-ipv4: 4383700153 dns-udp-responses-sent-ipv6: 406575050 dns-tcp-responses-sent-ipv4: 103420812 dns-tcp-responses-sent-ipv6: 13334329