... exam objectives. Exam 640-505: Remote Access This exam tests your knowledge of installing, configuring, monitoring, and troubleshooting Cisco ISDN and dial-up access products. You must understand ... structure, which allows the modem to be customized for use in a remote access solution. In addition, as presented in the Remote Access with Modems” sidebar, this chapter showed readers how to ... these protocols to gain access or deny service to the router. For example, if there is no business need to use RLOGIN, why leave the access available to allow repeated access attempts from an...