... are not upgradeable B. None of the current available models (3005, 3015, 3030, 3060 & 3080) are modular and upgradeable. C. All of the current available models (3005, 3015, 3030, 3060 & ... values B. When you specify authentication using pre-shared keys C. When the service of a CA is not available D. When you have a small number of peers Answer: D QUESTION NO: 73 A CA ... on the PC: select Start > Programs > Cisco Systems VPN 3000 Client > VPN Dialer. Click New. Name the connection, click Next, and enter the IP address of the public interface of the Concentrator....