--- version: rssac002v3 service: a.root-servers.net start-period: '2021-04-29T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5636094920 dns-udp-queries-received-ipv6: 1238540768 dns-tcp-queries-received-ipv4: 293342647 dns-tcp-queries-received-ipv6: 123260007 dns-udp-responses-sent-ipv4: 5586723931 dns-udp-responses-sent-ipv6: 1261832918 dns-tcp-responses-sent-ipv4: 283751183 dns-tcp-responses-sent-ipv6: 123354473