--- version: rssac002v3 service: a.root-servers.net start-period: '2021-10-11T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5111731051 dns-udp-queries-received-ipv6: 1362037205 dns-tcp-queries-received-ipv4: 307364122 dns-tcp-queries-received-ipv6: 74552823 dns-udp-responses-sent-ipv4: 4960913909 dns-udp-responses-sent-ipv6: 1359829354 dns-tcp-responses-sent-ipv4: 302885272 dns-tcp-responses-sent-ipv6: 74878562