--- version: rssac002v3 service: a.root-servers.net start-period: '2020-01-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6749240948 dns-udp-queries-received-ipv6: 1000832443 dns-tcp-queries-received-ipv4: 260165143 dns-tcp-queries-received-ipv6: 70382600 dns-udp-responses-sent-ipv4: 6538835422 dns-udp-responses-sent-ipv6: 997734534 dns-tcp-responses-sent-ipv4: 249577935 dns-tcp-responses-sent-ipv6: 70346086