--- version: rssac002v3 service: a.root-servers.net start-period: '2017-12-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4836672184 dns-udp-queries-received-ipv6: 404634987 dns-tcp-queries-received-ipv4: 106538771 dns-tcp-queries-received-ipv6: 13350869 dns-udp-responses-sent-ipv4: 4833007161 dns-udp-responses-sent-ipv6: 404599209 dns-tcp-responses-sent-ipv4: 106887032 dns-tcp-responses-sent-ipv6: 13477291