CompTIA Network+ Practice Test

Disable ads (and more) with a membership for a one time $2.99 payment

Prepare for the CompTIA Network+ Exam with interactive quizzes, flashcards, and detailed explanations. Enhance your networking knowledge and ace your certification test with confidence!

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.

What should be checked on a PoE switch?

The total data speed
The total PoE power supplied
The physical condition of cables
The firmware version

The correct answer is: The total PoE power supplied

Focusing on the total PoE (Power over Ethernet) power supplied is critical when working with a PoE switch. PoE technology allows network cables to carry electrical power along with data, enabling devices such as IP cameras, VoIP phones, and wireless access points to receive both power and data over a single cable. Monitoring the total PoE power supplied ensures that the switch can adequately support all connected devices without exceeding its power budget. Each device connected to the switch has a specific power requirement, and if the combined power demand exceeds the capacity of the switch, some devices may not function properly or could even cause the switch to fail to operate reliably. Thus, checking the total PoE power supplied is essential for maintaining the proper functionality and performance of a network powered by PoE, ensuring that all devices receive adequate power for their operations.