--- version: rssac002v3 service: a.root-servers.net start-period: '2017-05-24T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3869802420 dns-udp-queries-received-ipv6: 434351263 dns-tcp-queries-received-ipv4: 176982897 dns-tcp-queries-received-ipv6: 8763103 dns-udp-responses-sent-ipv4: 3866317727 dns-udp-responses-sent-ipv6: 434298045 dns-tcp-responses-sent-ipv4: 176898835 dns-tcp-responses-sent-ipv6: 8872335