--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-28T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4044451570 dns-udp-queries-received-ipv6: 426869299 dns-tcp-queries-received-ipv4: 161506597 dns-tcp-queries-received-ipv6: 8062907 dns-udp-responses-sent-ipv4: 4038262578 dns-udp-responses-sent-ipv6: 426456524 dns-tcp-responses-sent-ipv4: 161624685 dns-tcp-responses-sent-ipv6: 8151395