--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3518122515 dns-udp-queries-received-ipv6: 367224798 dns-tcp-queries-received-ipv4: 103216097 dns-tcp-queries-received-ipv6: 13616942 dns-udp-responses-sent-ipv4: 3454133517 dns-udp-responses-sent-ipv6: 367063867 dns-tcp-responses-sent-ipv4: 102986369 dns-tcp-responses-sent-ipv6: 13638463