--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-12T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3708296694 dns-udp-queries-received-ipv6: 363710791 dns-tcp-queries-received-ipv4: 149763234 dns-tcp-queries-received-ipv6: 16261246 dns-udp-responses-sent-ipv4: 3704973043 dns-udp-responses-sent-ipv6: 363696408 dns-tcp-responses-sent-ipv4: 149982773 dns-tcp-responses-sent-ipv6: 16298525