To meet the requirement of collecting show command data every 30 seconds and sending it to receivers, the command must specify the sample interval in milliseconds. Therefore, the correct command is Snsr-grp 200 sample-interval 30000, which sets the sample interval to 30,000 milliseconds (equivalent to 30 seconds). References := The configuration details for streaming telemetry on a Cisco MDS 9000 series switch can be found in the Cisco MDS 9000 Series SAN Analytics and SAN Telemetry Streaming Configuration Guide1.