--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5784538959 dns-udp-queries-received-ipv6: 1129493713 dns-tcp-queries-received-ipv4: 545998203 dns-tcp-queries-received-ipv6: 87954071 dns-udp-responses-sent-ipv4: 5298774616 dns-udp-responses-sent-ipv6: 1125176271 dns-tcp-responses-sent-ipv4: 372608915 dns-tcp-responses-sent-ipv6: 88061587