EMC Exam Questions

What are sources from which an Isilon cluster can obtain authentication data about a user attempting

What are sources from which an Isilon cluster can obtain authentication data about a user
attempting to access the cluster?

A.
LDAP, NIS, and filedb

B.
FTP, filedb, and samdb

C.
HTTP, LDAP, and samdb

D.
NIS+, HTTP, and NIS