What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?

Questions BankWhat code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?
ITExamAnswers Staff asked 1 month ago
Question:
What code in the Cisco IOS 15 image filename c1900-universalk9-mz.SPA.153-3.M.bin indicates that the file is digitally signed by Cisco?

  • mz
  • SPA
  • universalk9
  • M

Explanation: The different parts of the Cisco IOS image file are as follows:
c1900 – Identifies the platform as a Cisco 1900 router.
universalk9 – specifies the image contains strong encryption.
mz – Indicates the file runs from RAM and is compressed.
SPA – designates that the file is digitally signed by Cisco.
152-4.M3 – specifies the filename format for the image 15.2(4)M3. This is the version of IOS, which includes the major release, minor release, maintenance release, and maintenance rebuild numbers. The M indicates this is an extended maintenance release.
bin – This extension indicates that this file is a binary executable file.

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