Final answer:
A burn-in test is a common practice in the computer industry to identify any issues or vulnerabilities in a new PC by running the PC continuously for 48 to 72 hours.
Step-by-step explanation:
The subject of this question is Computers and Technology. The burn-in test mentioned in the question is a common practice in the computer industry to identify any issues or vulnerabilities in a new PC. It involves running the PC continuously for a period of 48 to 72 hours to test its performance and stability, especially temperature-sensitive components.