After reloading a router, you issue the dir command to verify the installation and observe that the image file appears to be missing. For what reason could the image file fail to appear in the dir…

The correct answer is A. The secure boot-image command is configured. Secured files will not appear on the output of a dir command issued from an executive shell because the IFS prevents secure files in a directory from being listed. ROM monitor (ROMMON) mode does not have any such restriction and can be used to list and boot secured files…

Secure Routing and Switching

Question

After reloading a router, you issue the dir command to verify the installation and observe that the image file appears to be missing. For what reason could the image file fail to appear in the dir output?

Options

AThe secure boot-image command is configured
BThe secure boot-comfit command is configured
CThe confreg 0x24 command is configured.
DThe reload command was issued from ROMMON.

How the community answered

(36 responses)

A
75% (27)
B
14% (5)
C
6% (2)
D
6% (2)

Explanation

Secured files will not appear on the output of a dir command issued from an executive shell because the IFS prevents secure files in a directory from being listed. ROM monitor (ROMMON) mode does not have any such restriction and can be used to list and boot secured files. mt/sec-usr-cfg-15-mt-book/sec-resil-config.html

Topics

#secure boot-image#IOS image protection#router hardening#Cisco IOS resilience

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