--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-05-09T00:00:00Z' dns-udp-queries-received-ipv4: 2688592832 dns-udp-queries-received-ipv6: 526433983 dns-tcp-queries-received-ipv4: 62153238 dns-tcp-queries-received-ipv6: 16834848 dns-udp-responses-sent-ipv4: 2667346053 dns-udp-responses-sent-ipv6: 526019008 dns-tcp-responses-sent-ipv4: 60996243 dns-tcp-responses-sent-ipv6: 16732185