--- version: rssac002v3 service: a.root-servers.net start-period: '2018-11-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4718987710 dns-udp-queries-received-ipv6: 760316440 dns-tcp-queries-received-ipv4: 143039642 dns-tcp-queries-received-ipv6: 35381841 dns-udp-responses-sent-ipv4: 4606063336 dns-udp-responses-sent-ipv6: 759692740 dns-tcp-responses-sent-ipv4: 139197343 dns-tcp-responses-sent-ipv6: 35620083