--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4136803383 dns-udp-queries-received-ipv6: 450636206 dns-tcp-queries-received-ipv4: 172144648 dns-tcp-queries-received-ipv6: 7939098 dns-udp-responses-sent-ipv4: 4129780221 dns-udp-responses-sent-ipv6: 450497792 dns-tcp-responses-sent-ipv4: 172410385 dns-tcp-responses-sent-ipv6: 8040154