--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-09T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3589263383 dns-udp-queries-received-ipv6: 430896068 dns-tcp-queries-received-ipv4: 181109034 dns-tcp-queries-received-ipv6: 7102355 dns-udp-responses-sent-ipv4: 3583087923 dns-udp-responses-sent-ipv6: 430830008 dns-tcp-responses-sent-ipv4: 180988667 dns-tcp-responses-sent-ipv6: 7232575