Which two privileged mode Cisco IOS commands can be used to determine a Cisco router chassis serial number? (Choose two.)

A. show inventory
B. show flash:filesys
C. dir flash:|include chassis
D. show diag
E. show controllers

Answer : A, D

Choice A

The “chassis” hardware serial number section designates the serial number that is physically on the router.

Choice D

The show diag command returns the following information about a router and its adaptors/modules:

Hardware version
Board revision
RMA number and history
Chassis serial number
Cisco field replaceable unit (FRU) number (a good identifiable part number for the device)
Cisco part number (the actual part number of the device)
Technical registers of the backplane, including power supply and temperature status (not readable by this command)
Ports built into the motherboard of the device
Hardware versions, serial numbers, and part numbers for WIC cards in the device
Part numbers, port information, and serial numbers for network modules (NMs) inserted in the device

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