--- version: rssac002v3 service: a.root-servers.net start-period: '2018-06-02T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6316885435 dns-udp-queries-received-ipv6: 364459072 dns-tcp-queries-received-ipv4: 100304718 dns-tcp-queries-received-ipv6: 13887246 dns-udp-responses-sent-ipv4: 6239624982 dns-udp-responses-sent-ipv6: 364151890 dns-tcp-responses-sent-ipv4: 100512846 dns-tcp-responses-sent-ipv6: 13926944