The Acme Corporation is implementing dial-up services to enable remote-office employees to connect to the local network. The company uses multiple routed protocols, needs authentication of users connecting to the network, and since some calls will be long distance, needs callback support. Which of the following protocols is the best choice for these remote services?
Options: (A)Extent to which a system or component complies with standards (B) Trustworthiness of operating the software. (C) Measures that estimates system cost to operate and maintain (D) None of these 27