--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5844683750 dns-udp-queries-received-ipv6: 394919196 dns-tcp-queries-received-ipv4: 131458037 dns-tcp-queries-received-ipv6: 13576764 dns-udp-responses-sent-ipv4: 5842170778 dns-udp-responses-sent-ipv6: 394891816 dns-tcp-responses-sent-ipv4: 131688006 dns-tcp-responses-sent-ipv6: 13611949