COMPUTER NETWORKING

Detailed explanation-1: -Use the command copy running-config startup-config (copy run start) to overwrite the current startup config file with what is currently in the running configuration file.

Detailed explanation-2: -A startup configuration is stored in the nonvolatile memory of a device, which means that all configuration changes are saved even if the device loses power. To copy your running configuration into the startup configuration you need to type the command copy running-configuration startup-configuration.

Detailed explanation-3: -Usage Guidelines. The show running-config command displays the current running configuration on the FWSM. You can use the running-config keyword only in the show running-config command. You cannot use this keyword with no or clear, or as a standalone command, because the CLI treats it as a nonsupported command.

Detailed explanation-4: -The “copy run start” command is just a variation of the “copy” command. The copy command can be used to copy any files in or out of the flash etc.-as opposed to just saving the configuration.