--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-08T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3812971896 dns-udp-queries-received-ipv6: 441893716 dns-tcp-queries-received-ipv4: 180411521 dns-tcp-queries-received-ipv6: 7124018 dns-udp-responses-sent-ipv4: 3806425239 dns-udp-responses-sent-ipv6: 441868799 dns-tcp-responses-sent-ipv4: 180377813 dns-tcp-responses-sent-ipv6: 7259675