| A | B |
|---|
| Configure Terminal | command used to configure manually from the console terminal |
| Central Processing Unit | part of a computer that controls all other parts, fetches instructions from memory and decodes them. |
| Enable | command to enter privileged mode |
| Privileged mode | mode your in to be able to change routers configuration |
| Reload | command that causes the router to reboot |
| User mode | mode your in to check the routers status, no configuration changes allowed |
| POST | test the router performs to execute diagnostics from ROM on all hardware modules |
| Internetwork Operating System | software that controls the routing and switching functions of internetwork devices |
| Cisco software advisor | interactive tool that provides the most current software information |
| Erase startup-config | command used to delete the vackup configuration file in NVRAM |
| BootROM | allows write operations to flash memory and primarily used to replace the IOS image in flash |
| Command Line Interface | accessible through a console session from computer to console connection on a router |
| EXEC | command interpreter, after each command is entered, EXEC validates and executes each one. |
| Trivial File Transfer Protocol | allows files to be transferred from one computer to another over a network |
| Random Access Memory | volatile memory that can be read or written by microprocessor |
| Read Only Memory | nonvolatile memory that can be read but not written |
| Flash | nonvolatile storage that can be electrically erased and reprogrammed, allows software images to be stored, booted, and rewritten as necessary |
| NVRAM | RAM that retains its contents when a unit is powered off |
| Console | DTE through which commands are entered into a host |
| Setup mode | allows the administrator to install a minimal configuration of a router that's unable to locate a configuration file from another source |
