Which troubleshooting method involves swapping a device suspected of having issues with a known good device to see if the problem is solved?
- comparison
- substitution
- educated guess
- divide-and-conquer
Explanation: With the substitution troubleshooting method, a know suitable device is used to replace a suspected bad device. If this fixes the problem, then the problem was with the removed device. If the issue remains, the cause resides someplace else, and the troubleshooting continues.
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