正解:B
The curl command used to update settings typically involves making an HTTP PUT request to modify existing resources on the server. In this case, to update the SNMP community of network ID "1234567" to read-only, one would need to use a curl command that specifies the PUT method, includes headers indicating content type (usually application/json), and provides authentication credentials if necessary. The correct command should also include the appropriate body content specifying the new SNMP community settings. References:
Automating Cisco Enterprise Solutions Official Cert Guide