--- version: rssac002v3 service: a.root-servers.net start-period: '2019-12-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 6014515113 dns-udp-queries-received-ipv6: 1028391007 dns-tcp-queries-received-ipv4: 213821638 dns-tcp-queries-received-ipv6: 66702323 dns-udp-responses-sent-ipv4: 5843930583 dns-udp-responses-sent-ipv6: 1016789619 dns-tcp-responses-sent-ipv4: 210886548 dns-tcp-responses-sent-ipv6: 66888156