--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-19T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7317248670 dns-udp-queries-received-ipv6: 1290241089 dns-tcp-queries-received-ipv4: 501623129 dns-tcp-queries-received-ipv6: 109917355 dns-udp-responses-sent-ipv4: 6938432312 dns-udp-responses-sent-ipv6: 1221178676 dns-tcp-responses-sent-ipv4: 372746673 dns-tcp-responses-sent-ipv6: 76795567