--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3782644270 dns-udp-queries-received-ipv6: 426666227 dns-tcp-queries-received-ipv4: 150335326 dns-tcp-queries-received-ipv6: 16365891 dns-udp-responses-sent-ipv4: 3777023250 dns-udp-responses-sent-ipv6: 426591432 dns-tcp-responses-sent-ipv4: 150024993 dns-tcp-responses-sent-ipv6: 16406611