--- version: rssac002v3 service: a.root-servers.net start-period: '2018-08-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3777549152 dns-udp-queries-received-ipv6: 618160839 dns-tcp-queries-received-ipv4: 111327729 dns-tcp-queries-received-ipv6: 20249526 dns-udp-responses-sent-ipv4: 3677157913 dns-udp-responses-sent-ipv6: 617683122 dns-tcp-responses-sent-ipv4: 108083987 dns-tcp-responses-sent-ipv6: 20288905