--- version: rssac002v3 service: i.root-servers.net start-period: '2019-12-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5732821563 dns-udp-queries-received-ipv6: 990909740 dns-tcp-queries-received-ipv4: 689635400 dns-tcp-queries-received-ipv6: 161629635 dns-udp-responses-sent-ipv4: 4759763608 dns-udp-responses-sent-ipv6: 891937187 dns-tcp-responses-sent-ipv4: 614817784 dns-tcp-responses-sent-ipv6: 152370306