--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3448960709 dns-udp-queries-received-ipv6: 420120524 dns-tcp-queries-received-ipv4: 92105426 dns-tcp-queries-received-ipv6: 9803714 dns-udp-responses-sent-ipv4: 3446558258 dns-udp-responses-sent-ipv6: 420077183 dns-tcp-responses-sent-ipv4: 92142669 dns-tcp-responses-sent-ipv6: 9921046