--- version: rssac002v3 service: a.root-servers.net start-period: '2019-07-06T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5951963946 dns-udp-queries-received-ipv6: 1106463972 dns-tcp-queries-received-ipv4: 159271256 dns-tcp-queries-received-ipv6: 30855087 dns-udp-responses-sent-ipv4: 5823237624 dns-udp-responses-sent-ipv6: 1105273223 dns-tcp-responses-sent-ipv4: 155543688 dns-tcp-responses-sent-ipv6: 31613857