--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-11T00:00:00Z' dns-udp-queries-received-ipv4: 2970578928 dns-udp-queries-received-ipv6: 751436647 dns-tcp-queries-received-ipv4: 69398910 dns-tcp-queries-received-ipv6: 16793849 dns-udp-responses-sent-ipv4: 2943243347 dns-udp-responses-sent-ipv6: 750947588 dns-tcp-responses-sent-ipv4: 67650114 dns-tcp-responses-sent-ipv6: 16484065