--- version: rssac002v3 service: a.root-servers.net start-period: '2017-04-14T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4172601805 dns-udp-queries-received-ipv6: 450255779 dns-tcp-queries-received-ipv4: 189915578 dns-tcp-queries-received-ipv6: 7981347 dns-udp-responses-sent-ipv4: 4169938015 dns-udp-responses-sent-ipv6: 450238511 dns-tcp-responses-sent-ipv4: 189943520 dns-tcp-responses-sent-ipv6: 8122682