Final answer:
Performing diagnostic tests is important to identify causes of computer system problems and find appropriate solutions.
Step-by-step explanation:
The importance of performing diagnostic tests is that they enable you to identify possible causes of performance or functional problems in a computer system. Diagnostic tests help pinpoint issues such as hardware failures, software errors, or network connectivity problems. By running diagnostic tests, you can gather data and analyze it to troubleshoot the system and determine the appropriate solutions.
Learn more about importance of performing diagnostic tests