--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-05T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6734842966 dns-udp-queries-received-ipv6: 903922448 dns-tcp-queries-received-ipv4: 256167080 dns-tcp-queries-received-ipv6: 66898268 dns-udp-responses-sent-ipv4: 6558695891 dns-udp-responses-sent-ipv6: 901820331 dns-tcp-responses-sent-ipv4: 249170617 dns-tcp-responses-sent-ipv6: 67049053