--- version: rssac002v3 service: j.root-servers.net start-period: '2018-06-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5395622068 dns-udp-queries-received-ipv6: 504385034 dns-tcp-queries-received-ipv4: 263791376 dns-tcp-queries-received-ipv6: 17974194 dns-udp-responses-sent-ipv4: 5190245901 dns-udp-responses-sent-ipv6: 500218941 dns-tcp-responses-sent-ipv4: 206666410 dns-tcp-responses-sent-ipv6: 17949811