--- version: rssac002v4 service: a.root-servers.net start-period: '2022-02-10T00:00:00Z' metric: traffic-volume dns-udp-queries-received-ipv4: 5081772025 dns-udp-queries-received-ipv6: 1388178550 dns-tcp-queries-received-ipv4: 267211017 dns-tcp-queries-received-ipv6: 52108955 dns-udp-responses-sent-ipv4: 4924789962 dns-udp-responses-sent-ipv6: 1386180632 dns-tcp-responses-sent-ipv4: 261157693 dns-tcp-responses-sent-ipv6: 52259958