Certified Data Centre Professional (CDCP) Practice Exam

Increased harmonics in a power supply can lead to potential system failures due to the distortion of the electrical current waveforms. Harmonics can introduce additional currents that may not only affect the efficiency of equipment but can also cause overheating, equipment malfunction, and premature failures. These distorted waveforms can interfere with sensitive electronic devices and lead to unexpected shutdowns or faults in the system, thus putting the reliability of the data centre at risk.

The other answer choices do not accurately reflect the implications of increased harmonics. For instance, improved efficiency is not associated with increased harmonics, as harmonics typically reduce the overall power quality. Reduced operational costs may seem desirable, but these costs might increase in the long run due to the maintenance and replacement of equipment affected by harmonics. Increased system redundancy is a strategy for mitigating risks, but it would not be a direct consequence of increased harmonics; rather, it may be a response to the challenges posed by harmonics.