--- version: rssac002v3 service: a.root-servers.net start-period: '2019-09-20T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6806026582 dns-udp-queries-received-ipv6: 1289812267 dns-tcp-queries-received-ipv4: 199835656 dns-tcp-queries-received-ipv6: 36155651 dns-udp-responses-sent-ipv4: 6640480125 dns-udp-responses-sent-ipv6: 1289048753 dns-tcp-responses-sent-ipv4: 195885482 dns-tcp-responses-sent-ipv6: 36937087