--- version: rssac002v3 service: a.root-servers.net start-period: '2018-05-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 3832314534 dns-udp-queries-received-ipv6: 318600399 dns-tcp-queries-received-ipv4: 126400297 dns-tcp-queries-received-ipv6: 13354297 dns-udp-responses-sent-ipv4: 3767680277 dns-udp-responses-sent-ipv6: 318045480 dns-tcp-responses-sent-ipv4: 127457634 dns-tcp-responses-sent-ipv6: 13381860