Discussion
Which of the following commands will display the current IP addressing and the layer 1 and 2 status of an interface?
1.show version
2.show protocols
3.show interfaces
4.show controllers
5.show ip interface
Answer: B
Correct answer: 2, 3 and 5
show protocols lists each interface with its address and its line and protocol status; show interfaces gives the same information with a great deal more detail; and show ip interface gives it per interface with the IP-specific settings. show version reports the software and hardware, and show controllers reports the physical layer at the controller level - useful for identifying a DTE or DCE cable, but it carries no IP addressing.
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