--- service: a.root-servers.net start-period: '2016-03-22T00:00:00Z' end-period: '2016-03-22T23:59:59Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5057660138 dns-udp-queries-received-ipv6: 316415743 dns-tcp-queries-received-ipv4: 68090580 dns-tcp-queries-received-ipv6: 4133464 dns-udp-responses-sent-ipv4: 5042728828 dns-udp-responses-sent-ipv6: 318752194 dns-tcp-responses-sent-ipv4: 58442299 dns-tcp-responses-sent-ipv6: 272368