--- version: rssac002v4 service: j.root-servers.net start-period: '2021-12-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5818159858 dns-udp-queries-received-ipv6: 1463552598 dns-tcp-queries-received-ipv4: 412730041 dns-tcp-queries-received-ipv6: 95338091 dns-udp-responses-sent-ipv4: 5402601829 dns-udp-responses-sent-ipv6: 1433059428 dns-tcp-responses-sent-ipv4: 275606065 dns-tcp-responses-sent-ipv6: 94201304