--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4327552615 dns-udp-queries-received-ipv6: 477449634 dns-tcp-queries-received-ipv4: 161796731 dns-tcp-queries-received-ipv6: 8906096 dns-udp-responses-sent-ipv4: 4319118334 dns-udp-responses-sent-ipv6: 477219791 dns-tcp-responses-sent-ipv4: 162006900 dns-tcp-responses-sent-ipv6: 9050730