--- version: rssac002v3 service: j.root-servers.net start-period: '2019-01-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6425079187 dns-udp-queries-received-ipv6: 834358566 dns-tcp-queries-received-ipv4: 429571662 dns-tcp-queries-received-ipv6: 73471720 dns-udp-responses-sent-ipv4: 6047613428 dns-udp-responses-sent-ipv6: 794679242 dns-tcp-responses-sent-ipv4: 284039909 dns-tcp-responses-sent-ipv6: 53035379