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What IOS command can be used to verify the operational status of interfaces on router R1? (Choose two.)
RT1# debug interface
RT1# show interfaces
RT1# show start
RT1# show ip protocols
RT1# show ip interface brief
Commands "show ip interface brief" and "show interfaces" display the interfaces with their operational status. The command "show ip interface brief" displays a list with one line per interface, with important information such as IP address and layer 1/layer 2 status. The command "show interfaces" lists the interfaces with a large amount of information per interface. _Show ip protocols shows the running protocols and the timers associated with each routing protocol configured on a router. _Show startup-config shows the backup configuration in NVRAM. For more information refer to: [Odom W. - Cisco CCENT - CCNA ICND1 100-101 Official Certification Guide] %%image.ORIGINAL%%
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