--- version: rssac002v4 service: a.root-servers.net start-period: '2022-04-26T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4990767432 dns-udp-queries-received-ipv6: 1482804387 dns-tcp-queries-received-ipv4: 256611144 dns-tcp-queries-received-ipv6: 65704549 dns-udp-responses-sent-ipv4: 4973384418 dns-udp-responses-sent-ipv6: 1486674668 dns-tcp-responses-sent-ipv4: 254740614 dns-tcp-responses-sent-ipv6: 65664491