--- version: rssac002v3 service: a.root-servers.net start-period: '2020-07-01T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 8213666147 dns-udp-queries-received-ipv6: 1818884180 dns-tcp-queries-received-ipv4: 242160357 dns-tcp-queries-received-ipv6: 139006947 dns-udp-responses-sent-ipv4: 7990172595 dns-udp-responses-sent-ipv6: 1815170466 dns-tcp-responses-sent-ipv4: 224858863 dns-tcp-responses-sent-ipv6: 148221469