The Cisco SD-WAN vManage Certificate Management API is primarily used for certificate-related operations within the SD-WAN fabric. The correct purpose of using this API is: * A: To generate a Certificate Signing Request (CSR). The CSR is a request sent from an applicant to a certificate authority to apply for a digital identity certificate. It contains information that will be included in the certificate, such as the applicant's public key and organization details. Once the CSR is generated, it can be signed by a Certificate Authority (CA) to create a certificate1. References: * Cisco Catalyst SD-WAN CloudOps - Certificate Management1 * Cisco SD-WAN API documentation2 * Understand the Web Certificate For vManage - Cisco