--- version: rssac002v3 service: a.root-servers.net start-period: '2018-10-21T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4196309657 dns-udp-queries-received-ipv6: 658720764 dns-tcp-queries-received-ipv4: 111859055 dns-tcp-queries-received-ipv6: 24983372 dns-udp-responses-sent-ipv4: 4097473399 dns-udp-responses-sent-ipv6: 658342790 dns-tcp-responses-sent-ipv4: 109105103 dns-tcp-responses-sent-ipv6: 25096462