--- version: rssac002v3 service: a.root-servers.net start-period: '2021-07-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5469129156 dns-udp-queries-received-ipv6: 1450911309 dns-tcp-queries-received-ipv4: 284053104 dns-tcp-queries-received-ipv6: 111195375 dns-udp-responses-sent-ipv4: 5307008785 dns-udp-responses-sent-ipv6: 1449345815 dns-tcp-responses-sent-ipv4: 275416065 dns-tcp-responses-sent-ipv6: 111320795