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What hash type does Cisco use to validate the integrity of downloaded images?
A. Sha1
B. Sha2
C. Md5
D. Md1
Correct Answer: C
Explanation/Reference:
The MD5 File Validation feature allows you to generate the MD5 checksum for the Cisco IOS image stored on your router and compare it to the value posted on Cisco.com to verify that the image on your router is not corrupted.
Reference: http://www.cisco.com/c/en/us/td/docs/ios-xml/ios/sys-image-mgmt/configuration/15-s/sysimgmgmt-15-s-book/sysimgmgmt-md5.html#GUID-9E5A6790-5E81-442B-8F6F-54271B25A9F8