To create a certificate request in Cisco UCS Manager, the correct command set involves navigating to the security scope, selecting the appropriate keyring, and then creating the certificate request with the specified IP address and subject name. The commands in option D correctly follow this procedure. The commit-buffer command is used to commit the changes in UCS-A, which is the primary fabric. References: This process is documented in the Cisco UCS Manager certificate management guidelines, which provide step-by-step instructions on creating certificate requests using the CLI