You work as an IT professional in an international corporation named Wiikigo. In the company, your job is to configure Microsoft Internet Security and Acceleration Server 2006. And you are experienced in performing and managing networks and operational systems. In addition, you are skilled at deploying ISA Server 2006, configuring firewall settings, and optimizing performance of the ISA Server 2006 cache. An ISA Server 2006 computer is contained by your network and the computer is named ISA01. The ISA Server 2006 which serves as a remote access VPN server for the network is a member of a workgroup. The company configures ISA01 so that only EAP authentication is accepted for VPN clients. User certificates are assigned to all VPN clients, and the user certificates are from the corporate enterprise certification authority (CA). It is reported that the network is not available to the users. The following error message is received by them.
“Error 691 Access was denied for the username and/or password was invalid for the domain.”
You are required to make sure that the network is available for VPN users.
Which action should be performed?
A.
ISA01 should be set to utilize RADIUS authentication.
B.
ISA01 should be joined to the corporate network domain.
C.
The CA certificate should be placed into the VPN clients Trusted Root Certification Authorities computer certificate store.
D.
Remote access permissions should be enabled for the VPN user accounts in Active Directory.