Refer to the exhibit. A network administrator configures a new router and enters the copy startup-config running-config on the router. The network administrator powers down the router and sets it up at a remote location. When the router starts, it enter the system configuration dialog as shown. What is the caust of the problem?()
- AThe network administrator faled to save the configuration.
- BThe configuration register is set to 0x2100.
- CThe boot system flash command is missing from the configuration.
- DThe configuraiton register is set to 0x2102.
- EThe router is configured with the boot system startup command.