ICND1 Infrastructure Maintenance 2 — Questions and Answers
Question 1: Which command displays the current running configuration on a Cisco router?
- show startup-config
- show running-config (Correct answer)
- show version
- show flash
Correct answer: show running-config
The 'show running-config' command displays the active configuration currently loaded in RAM.
Question 2: A technician needs to save the current configuration so it persists after a reload. Which command accomplishes this?
- copy flash nvram
- copy running-config startup-config (Correct answer)
- write erase
- reload
Correct answer: copy running-config startup-config
The 'copy running-config startup-config' command saves the RAM-based running config to NVRAM as the startup config.
Question 3: What is the purpose of the 'no shutdown' command on a router interface?
- Saves the interface configuration
- Administratively enables the interface (Correct answer)
- Resets the interface statistics
- Removes the IP address from the interface
Correct answer: Administratively enables the interface
The 'no shutdown' command administratively enables an interface that was previously disabled with the 'shutdown' command.
Question 4: Which IOS command would you use to verify the version of Cisco IOS running on a device?
- show interfaces
- show protocols
- show version (Correct answer)
- show ip route
Correct answer: show version
The 'show version' command displays the IOS version, uptime, hardware model, and memory information.
Question 5: A router needs to be restored to factory default settings. Which command erases the startup configuration?
- erase running-config
- erase flash:
- write erase (Correct answer)
- delete nvram
Correct answer: write erase
The 'write erase' command (or 'erase startup-config') removes the startup configuration stored in NVRAM.
Question 6: Which command allows a network administrator to set the clock on a Cisco device?
- set clock
- clock set (Correct answer)
- ntp set
- time set
Correct answer: clock set
The 'clock set' privileged EXEC command manually configures the software clock on a Cisco device.
Question 7: What does the 'show cdp neighbors' command display?
- Routing table entries for directly connected networks
- Directly connected Cisco devices and their interface information (Correct answer)
- OSPF neighbor adjacency states
- MAC address table of connected switches
Correct answer: Directly connected Cisco devices and their interface information
CDP (Cisco Discovery Protocol) neighbors shows directly connected Cisco devices, their platform, capabilities, and connected interface.
ICND1 Infrastructure Maintenance 2
Which command displays the current running configuration on a Cisco router?