--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4161665203 dns-udp-queries-received-ipv6: 403701496 dns-tcp-queries-received-ipv4: 141124890 dns-tcp-queries-received-ipv6: 9424640 dns-udp-responses-sent-ipv4: 4160918799 dns-udp-responses-sent-ipv6: 403676375 dns-tcp-responses-sent-ipv4: 141308344 dns-tcp-responses-sent-ipv6: 9550983