--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-18T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4558935430 dns-udp-queries-received-ipv6: 680071195 dns-tcp-queries-received-ipv4: 116001218 dns-tcp-queries-received-ipv6: 26249931 dns-udp-responses-sent-ipv4: 4443186442 dns-udp-responses-sent-ipv6: 679675650 dns-tcp-responses-sent-ipv4: 113930558 dns-tcp-responses-sent-ipv6: 26475851