--- version: rssac002v3 service: a.root-servers.net start-period: '2018-11-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4821513319 dns-udp-queries-received-ipv6: 722251912 dns-tcp-queries-received-ipv4: 156776852 dns-tcp-queries-received-ipv6: 32956018 dns-udp-responses-sent-ipv4: 4700034323 dns-udp-responses-sent-ipv6: 721682902 dns-tcp-responses-sent-ipv4: 151327937 dns-tcp-responses-sent-ipv6: 33158339