--- version: rssac002v3 service: a.root-servers.net start-period: '2018-09-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4378517486 dns-udp-queries-received-ipv6: 640317649 dns-tcp-queries-received-ipv4: 103754182 dns-tcp-queries-received-ipv6: 23572164 dns-udp-responses-sent-ipv4: 4276785299 dns-udp-responses-sent-ipv6: 640071957 dns-tcp-responses-sent-ipv4: 100055662 dns-tcp-responses-sent-ipv6: 23614863