--- version: rssac002v3 service: j.root-servers.net start-period: '2021-01-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6139700211 dns-udp-queries-received-ipv6: 1224162554 dns-tcp-queries-received-ipv4: 607087934 dns-tcp-queries-received-ipv6: 92219867 dns-udp-responses-sent-ipv4: 5600887219 dns-udp-responses-sent-ipv6: 1220282972 dns-tcp-responses-sent-ipv4: 414266132 dns-tcp-responses-sent-ipv6: 92244585