--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4785092443 dns-udp-queries-received-ipv6: 436271247 dns-tcp-queries-received-ipv4: 103192197 dns-tcp-queries-received-ipv6: 13640514 dns-udp-responses-sent-ipv4: 4780340423 dns-udp-responses-sent-ipv6: 436241040 dns-tcp-responses-sent-ipv4: 103392152 dns-tcp-responses-sent-ipv6: 13747902