--- version: rssac002v3 service: j.root-servers.net start-period: '2021-04-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6681706618 dns-udp-queries-received-ipv6: 1469222707 dns-tcp-queries-received-ipv4: 543031089 dns-tcp-queries-received-ipv6: 107013463 dns-udp-responses-sent-ipv4: 6238951152 dns-udp-responses-sent-ipv6: 1452657351 dns-tcp-responses-sent-ipv4: 387732441 dns-tcp-responses-sent-ipv6: 101958923