--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-03T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3377665616 dns-udp-queries-received-ipv6: 402915075 dns-tcp-queries-received-ipv4: 107721679 dns-tcp-queries-received-ipv6: 13451587 dns-udp-responses-sent-ipv4: 3298170290 dns-udp-responses-sent-ipv6: 402190162 dns-tcp-responses-sent-ipv4: 106912362 dns-tcp-responses-sent-ipv6: 13476452