--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-01-23T00:00:00Z' dns-udp-queries-received-ipv4: 2310951234 dns-udp-queries-received-ipv6: 520027912 dns-tcp-queries-received-ipv4: 44947776 dns-tcp-queries-received-ipv6: 13687917 dns-udp-responses-sent-ipv4: 2302362777 dns-udp-responses-sent-ipv6: 518905439 dns-tcp-responses-sent-ipv4: 42031384 dns-tcp-responses-sent-ipv6: 12981027