100-140 Exam Dumps | What should technicians be cautious of before updating firmware on critical systems?

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Question 123/301

What should technicians be cautious of before updating firmware on critical systems?

A. Ensuring the firmware is sourced from unofficial third-party sites for faster access

B. Checking the firmware version to make sure it matches exactly what is required

C. Scheduling the update during peak business hours to ensure immediate support is available

D. Ensuring there is a backup before applying the update

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