--- version: rssac002v4 service: a.root-servers.net start-period: '2022-05-23T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5019246641 dns-udp-queries-received-ipv6: 1644799551 dns-tcp-queries-received-ipv4: 287908808 dns-tcp-queries-received-ipv6: 60769606 dns-udp-responses-sent-ipv4: 4762883128 dns-udp-responses-sent-ipv6: 1643290011 dns-tcp-responses-sent-ipv4: 269458485 dns-tcp-responses-sent-ipv6: 60795833