--- version: rssac002v3 service: a.root-servers.net start-period: '2020-02-15T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7101213627 dns-udp-queries-received-ipv6: 984935987 dns-tcp-queries-received-ipv4: 277683019 dns-tcp-queries-received-ipv6: 73114375 dns-udp-responses-sent-ipv4: 6922732612 dns-udp-responses-sent-ipv6: 982679161 dns-tcp-responses-sent-ipv4: 263999746 dns-tcp-responses-sent-ipv6: 73187163