Question: What is the correct option to set up Kerberos when starting MongoDBd?

1. `--setParameter authenticationMechanisms=GSSAPI`
2. `--setAuthentication=GSSAPI`
3. `--setParam auth=K`
4. `--setAuth method=Kerberos`

Answer: The correct answer of the above question is Option A:`--setParameter authenticationMechanisms=GSSAPI`