I have seen a lot of new SCCM Admins actually asking me what is the use of BITS in SCCM
1. With BITS , the data Transfer uses only the available bandwidth and will never choke your network while delivering something to clients or to Sites.
2. With BITS if we have a suspended data to be transferred , it will resume from the same point at which it wassuspended .
Hope this clarifies the queries of young SCCM Admins