BRS stands for Bibliographic Retrieval services. BRS is a full-text info and database retrieval system, and it uses an entirely inverted indexing system to recover, locate, and store unstructured data. BRS was the search engine that powered its commercial operations with 20 databases. Its ownership has been modified many times during its development period. FRS stands for File Replication Service.
When you want to change a file, such as switching to an existing file or creating a new file, this sends it to another server in that group. Simultaneously, two copies of the files are edited at different servers; then, it handles such conflicts the service resolves. The service deals with any such issue by using the file with the latest time and date.
The file replication service's primary use is for SYSVOL directory share, which is particularly vital in a Microsoft network because it is employed in distributing files supporting the group policies that are run every time a user logs onto the system. Resilience is increased by having multiple copies of an SYSVOL directory spreading the essential service's workload. BRS is the text information retrieval system, while FRS is used to replicate files to a different server.