--- version: rssac002v4 service: a.root-servers.net start-period: '2021-11-04T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5110284254 dns-udp-queries-received-ipv6: 1246296694 dns-tcp-queries-received-ipv4: 291349296 dns-tcp-queries-received-ipv6: 77253032 dns-udp-responses-sent-ipv4: 5018294049 dns-udp-responses-sent-ipv6: 1249546460 dns-tcp-responses-sent-ipv4: 288501388 dns-tcp-responses-sent-ipv6: 77083580