Final answer:
A Registration Authority (RA) is responsible for alleviating the workload of a Certificate Authority by conducting preliminary verification before the issuance of certificates.
Step-by-step explanation:
A Registration Authority (RA) is used to take the burden off of a Certificate Authority (CA) by handling verification prior to certificates being issued. It acts as a proxy between a user and CA and it receives a request, authenticates it, and forwards it to the CA. A Registration Authority (RA) is responsible for alleviating the workload of a Certificate Authority by conducting preliminary verification before the issuance of certificates.