--- version: rssac002v4 service: a.root-servers.net start-period: '2022-03-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4948545548 dns-udp-queries-received-ipv6: 1270523464 dns-tcp-queries-received-ipv4: 286691518 dns-tcp-queries-received-ipv6: 43315383 dns-udp-responses-sent-ipv4: 4982308272 dns-udp-responses-sent-ipv6: 1273681504 dns-tcp-responses-sent-ipv4: 285408560 dns-tcp-responses-sent-ipv6: 43442749