You administer a growing network of systems. The task is becoming more challenging as the network grows. Each system uses local files to authenticate users. People using a variety of systems have accumulated many login names and passwords. You find that it is difficult to service users’ authentication problems. What are two solutions to these problems? (Choose two.)

A.
configure your network to use NIS

B.
configure your network to use NFS

C.
configure your network to use DNS

D.
configure your network to use LDAP

E.
configure your network to use SNMP