--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6997566045 dns-udp-queries-received-ipv6: 842555888 dns-tcp-queries-received-ipv4: 254313406 dns-tcp-queries-received-ipv6: 71322063 dns-udp-responses-sent-ipv4: 6801152999 dns-udp-responses-sent-ipv6: 838712617 dns-tcp-responses-sent-ipv4: 236612782 dns-tcp-responses-sent-ipv6: 71261522