--- version: rssac002v3 service: a.root-servers.net start-period: '2020-03-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6858612722 dns-udp-queries-received-ipv6: 984527107 dns-tcp-queries-received-ipv4: 268993871 dns-tcp-queries-received-ipv6: 73484668 dns-udp-responses-sent-ipv4: 6628808775 dns-udp-responses-sent-ipv6: 982644318 dns-tcp-responses-sent-ipv4: 262244275 dns-tcp-responses-sent-ipv6: 74118414