Title: ICND1 / 7. Troubleshooting

Q: Which ICMP message will be generated if the TYPE field of the ICMP packet header has a value of 4?
A: Source Quench

Q: Which ICMP message will be generated if the TYPE field of the ICMP packet header has a value of 11?
A: Time Exceeded

Q: Which ICMP message will be generated if the TYPE field of the ICMP packet header has a value of 8?
A: Echo Request

Q: What are the four port mode LEDs available on a Cisco Catalyst switch?
A: stat, util, duplex, and speed

Q: Which ICMP message will be generated if the TYPE field of the ICMP packet header has a value of 0?
A: Echo Reply

Q: Which ICMP message will be generated if the TYPE field of the ICMP packet header has a value of 3?
A: Destination Unreachable

Q: How would you view the running config starting from the fastEthernet0/1 port?
A: show run | begin interface FastEthernet0/1
(Case sensitive)

Q: What does config-register 0x2142 do?
A: Ignores break
Boots into ROM if initial boot fails
9600 console baud rate
Ignores the contents of Non-Volatile RAM (NVRAM) (ignores configuration)

Q: What does Config-Register 0x2102 do?
A: Ignores break
Boots into ROM if initial boot fails
9600 console baud rate default value for most platforms