--- version: rssac002v3 service: a.root-servers.net start-period: '2017-06-30T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 4057490936 dns-udp-queries-received-ipv6: 403309947 dns-tcp-queries-received-ipv4: 145486759 dns-tcp-queries-received-ipv6: 9259015 dns-udp-responses-sent-ipv4: 4056153350 dns-udp-responses-sent-ipv6: 403311025 dns-tcp-responses-sent-ipv4: 145564869 dns-tcp-responses-sent-ipv6: 9399643