--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-29T00:00:00Z' dns-udp-queries-received-ipv4: 2853839410 dns-udp-queries-received-ipv6: 660076108 dns-tcp-queries-received-ipv4: 67018111 dns-tcp-queries-received-ipv6: 17204232 dns-udp-responses-sent-ipv4: 2813785795 dns-udp-responses-sent-ipv6: 659544056 dns-tcp-responses-sent-ipv4: 42110294 dns-tcp-responses-sent-ipv6: 10507146