--- version: rssac002v3 service: a.root-servers.net start-period: '2018-04-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3335511113 dns-udp-queries-received-ipv6: 344694739 dns-tcp-queries-received-ipv4: 108999509 dns-tcp-queries-received-ipv6: 15218974 dns-udp-responses-sent-ipv4: 3311479454 dns-udp-responses-sent-ipv6: 344501047 dns-tcp-responses-sent-ipv4: 110088158 dns-tcp-responses-sent-ipv6: 15244536