--- service: h.root-servers.net metric: traffic-volume version: rssac002v3 start-period: '2019-06-17T00:00:00Z' dns-udp-queries-received-ipv4: 3122181227 dns-udp-queries-received-ipv6: 704240612 dns-tcp-queries-received-ipv4: 67642412 dns-tcp-queries-received-ipv6: 18249892 dns-udp-responses-sent-ipv4: 3087459574 dns-udp-responses-sent-ipv6: 703653746 dns-tcp-responses-sent-ipv4: 65234636 dns-tcp-responses-sent-ipv6: 17820242