--- version: rssac002v3 service: a.root-servers.net start-period: '2018-01-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3585338492 dns-udp-queries-received-ipv6: 401948820 dns-tcp-queries-received-ipv4: 98909166 dns-tcp-queries-received-ipv6: 14388324 dns-udp-responses-sent-ipv4: 3582490180 dns-udp-responses-sent-ipv6: 401936750 dns-tcp-responses-sent-ipv4: 99057733 dns-tcp-responses-sent-ipv6: 14467316