--- version: rssac002v3 service: a.root-servers.net start-period: '2020-12-22T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5763592747 dns-udp-queries-received-ipv6: 1075556068 dns-tcp-queries-received-ipv4: 288715469 dns-tcp-queries-received-ipv6: 111611641 dns-udp-responses-sent-ipv4: 5579066983 dns-udp-responses-sent-ipv6: 1073114242 dns-tcp-responses-sent-ipv4: 279109172 dns-tcp-responses-sent-ipv6: 112014535