--- version: rssac002v3 service: a.root-servers.net start-period: '2020-03-31T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 9127070685 dns-udp-queries-received-ipv6: 1567422223 dns-tcp-queries-received-ipv4: 360386075 dns-tcp-queries-received-ipv6: 141821647 dns-udp-responses-sent-ipv4: 8865335651 dns-udp-responses-sent-ipv6: 1556354371 dns-tcp-responses-sent-ipv4: 356501715 dns-tcp-responses-sent-ipv6: 141948585