--- version: rssac002v3 service: j.root-servers.net start-period: '2021-03-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6411996819 dns-udp-queries-received-ipv6: 1364475161 dns-tcp-queries-received-ipv4: 562660661 dns-tcp-queries-received-ipv6: 125023575 dns-udp-responses-sent-ipv4: 5903407852 dns-udp-responses-sent-ipv6: 1352419680 dns-tcp-responses-sent-ipv4: 390927995 dns-tcp-responses-sent-ipv6: 122078297