--- version: rssac002v3 service: a.root-servers.net start-period: '2021-01-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5212349603 dns-udp-queries-received-ipv6: 1028361447 dns-tcp-queries-received-ipv4: 275698276 dns-tcp-queries-received-ipv6: 110232209 dns-udp-responses-sent-ipv4: 5066692161 dns-udp-responses-sent-ipv6: 1026237136 dns-tcp-responses-sent-ipv4: 265635110 dns-tcp-responses-sent-ipv6: 110599458