When you bring up a router, it firstly run a Power on self test(POST), If it passes then it will load IOS from flash memory then after that IOS looks for a valid configuration.
2. Which mode provides interactive configuration dialog
User EXEC mode
Privileged mode
Global configuration mode
Setup mode
Answer: Option D
3. Which command will show all commands available from that particular mode
config
enable
interface
?
Answer: Option D
Explanation:
? is called help command. It shows all commands available from mode in which you are login
4. Command to delete NVRAM on a router
delete NVRAM
delete running-config
erase NVRAM
erase start
Answer: Option D
5. Command to show if DTE or DCE cable is plugged int o serial 0