--- version: rssac002v4 service: j.root-servers.net start-period: '2022-04-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6318865859 dns-udp-queries-received-ipv6: 1732852546 dns-tcp-queries-received-ipv4: 451647167 dns-tcp-queries-received-ipv6: 156644137 dns-udp-responses-sent-ipv4: 5917293937 dns-udp-responses-sent-ipv6: 1708398807 dns-tcp-responses-sent-ipv4: 316720025 dns-tcp-responses-sent-ipv6: 155963979