A company has purchased a new self-service provisioning system and has brought in a consultant
to deploy the system. During the installation the application attempts to connect to the database
server but fails. Which of the following could cause the connection issue?

A.
The consultant has not been granted log in rights to the database server

B.
The database has not been configured for data de-duplication

C.
The consultant has not been granted sa rights to the database instance

D.
Necessary firewall ports have not been opened

Explanation: