--- version: rssac002v3 service: i.root-servers.net start-period: '2018-04-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5573743139 dns-udp-queries-received-ipv6: 726940349 dns-tcp-queries-received-ipv4: 120482011 dns-tcp-queries-received-ipv6: 17788279 dns-udp-responses-sent-ipv4: 5611099501 dns-udp-responses-sent-ipv6: 727476086 dns-tcp-responses-sent-ipv4: 118242704 dns-tcp-responses-sent-ipv6: 17824007