--- version: rssac002v3 service: j.root-servers.net start-period: '2021-05-27T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6486529706 dns-udp-queries-received-ipv6: 1527799008 dns-tcp-queries-received-ipv4: 592741929 dns-tcp-queries-received-ipv6: 144573294 dns-udp-responses-sent-ipv4: 5994341922 dns-udp-responses-sent-ipv6: 1521690232 dns-tcp-responses-sent-ipv4: 427514201 dns-tcp-responses-sent-ipv6: 148440165