The system LED is amber on a Cisco Catalyst 2950 series switch. What does this indicate?
正解:A
Explanation/Reference: Explanation: The system LED shows whether the system is receiving power and functioning properly. Below lists the LED colors and meanings: Color System Status Off System is not powered up. Green System is operating normally. Amber System is receiving power but is not functioning properly. http://www.cisco.com/en/US/docs/switches/lan/ catalyst2950/hardware/installation/guide/hgovrev.html