--- version: rssac002v3 service: a.root-servers.net start-period: '2018-03-16T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3814991676 dns-udp-queries-received-ipv6: 363829497 dns-tcp-queries-received-ipv4: 149868578 dns-tcp-queries-received-ipv6: 16290139 dns-udp-responses-sent-ipv4: 3811775610 dns-udp-responses-sent-ipv6: 363750080 dns-tcp-responses-sent-ipv4: 150318404 dns-tcp-responses-sent-ipv6: 16319305