--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4809858028 dns-udp-queries-received-ipv6: 321777458 dns-tcp-queries-received-ipv4: 119492000 dns-tcp-queries-received-ipv6: 13397726 dns-udp-responses-sent-ipv4: 4744459799 dns-udp-responses-sent-ipv6: 321389768 dns-tcp-responses-sent-ipv4: 120527148 dns-tcp-responses-sent-ipv6: 13434183