You are the network administrator of a construction company. The company has 50 users in the main office and 10 users in each of its five branch offices.

You install Microsoft Windows Server 2003, Standard Edition in native mode on a computer that has a network of client computers in each branch office. You connect each branch office to the main office by using WAN connections.

You need to ensure that users can authenticate to the domain from a remote branch office even when the WAN connection is down.

What should you do?

A.
Install a member server only at each branch office.

B.
Install a domain controller and a DNS server only at each branch office.

C.
Install a member server, a WINS server, and a DNS server at each branch office.

D.
Install a domain controller, a DNS server, and the global catalog at each remote office.