--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-07-04T00:00:00Z' dns-udp-queries-received-ipv4: 3094165888 dns-udp-queries-received-ipv6: 617154790 dns-tcp-queries-received-ipv4: 72668110 dns-tcp-queries-received-ipv6: 17954800 dns-udp-responses-sent-ipv4: 3052127782 dns-udp-responses-sent-ipv6: 616252638 dns-tcp-responses-sent-ipv4: 47574625 dns-tcp-responses-sent-ipv6: 11431846