--- version: rssac002v3 service: a.root-servers.net start-period: '2018-02-07T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3720794274 dns-udp-queries-received-ipv6: 442586385 dns-tcp-queries-received-ipv4: 147137510 dns-tcp-queries-received-ipv6: 18019115 dns-udp-responses-sent-ipv4: 3712339687 dns-udp-responses-sent-ipv6: 442513322 dns-tcp-responses-sent-ipv4: 147080046 dns-tcp-responses-sent-ipv6: 18106236