--- version: rssac002v3 service: j.root-servers.net start-period: '2019-03-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6504594356 dns-udp-queries-received-ipv6: 981153075 dns-tcp-queries-received-ipv4: 438630660 dns-tcp-queries-received-ipv6: 103442359 dns-udp-responses-sent-ipv4: 6138994018 dns-udp-responses-sent-ipv6: 908177575 dns-tcp-responses-sent-ipv4: 346407273 dns-tcp-responses-sent-ipv6: 67776133