--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-25T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5059376242 dns-udp-queries-received-ipv6: 1264325467 dns-tcp-queries-received-ipv4: 262404006 dns-tcp-queries-received-ipv6: 56136704 dns-udp-responses-sent-ipv4: 5335035402 dns-udp-responses-sent-ipv6: 1314722473 dns-tcp-responses-sent-ipv4: 258374257 dns-tcp-responses-sent-ipv6: 55992483