--- version: rssac002v3 service: j.root-servers.net start-period: '2019-07-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 7638821589 dns-udp-queries-received-ipv6: 1571881620 dns-tcp-queries-received-ipv4: 394077152 dns-tcp-queries-received-ipv6: 225540368 dns-udp-responses-sent-ipv4: 7212556222 dns-udp-responses-sent-ipv6: 1379871312 dns-tcp-responses-sent-ipv4: 318844752 dns-tcp-responses-sent-ipv6: 130731620