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Extension practice

Restoring IOS Images Practice Questions

Extension practice: recovering a device with a corrupt or missing IOS image.

Author-reviewed by LabFabric · 7 September 2026 · Report a content issue

One solved question, so you can see how these are marked

A router's flash has been wiped and it now boots to the ROMMON prompt with no operating system. Which ROMMON command can download a new IOS image over the network from a TFTP server?

tftpdnld

tftpdnld is a ROMMON-level command (available when no IOS is loaded) that downloads a specified file from a TFTP server directly into flash, using environment variables to define the IP addressing and filename.

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