--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-17T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5695464283 dns-udp-queries-received-ipv6: 386114404 dns-tcp-queries-received-ipv4: 117832877 dns-tcp-queries-received-ipv6: 16495591 dns-udp-responses-sent-ipv4: 5567389198 dns-udp-responses-sent-ipv6: 385849097 dns-tcp-responses-sent-ipv4: 116310539 dns-tcp-responses-sent-ipv6: 16534406