--- service: h.root-servers.net metric: traffic-volume version: rssac002v4 start-period: 2021-04-04T00:00:00Z dns-udp-queries-received-ipv4: 3347663006 dns-udp-queries-received-ipv6: 862235078 dns-tcp-queries-received-ipv4: 115111856 dns-tcp-queries-received-ipv6: 64314898 dns-udp-responses-sent-ipv4: 3343900022 dns-udp-responses-sent-ipv6: 862054935 dns-tcp-responses-sent-ipv4: 117737418 dns-tcp-responses-sent-ipv6: 66185559