--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3911501930 dns-udp-queries-received-ipv6: 429277953 dns-tcp-queries-received-ipv4: 165819794 dns-tcp-queries-received-ipv6: 8673825 dns-udp-responses-sent-ipv4: 3909615667 dns-udp-responses-sent-ipv6: 429249636 dns-tcp-responses-sent-ipv4: 165858079 dns-tcp-responses-sent-ipv6: 8779579