This chapter covers the following official CCNA Routing and Switching 200-120 exam topics::
► Configure and verify network device security features such as SSH.
► Describe external authentication methods.
► Configure and verify switch port security features.
This chapter deals with securing your Cisco router or switch. It covers some basic device security best practices such as configuring passwords and changing from Telnet to Secure Shell (SSH) for remote management, and it describes external authentication methods and configuring switch port security.