CompTIA Network+ Practice Test

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Prepare for the CompTIA Network+ Exam. Utilize flashcards and multiple choice questions with detailed hints and explanations. Equip yourself for success!

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What does Power over Ethernet (PoE) enable?

Transmission of data only
Power and data transmission over a single cable
Increased network speed
Segmentation of a network

The correct answer is: Power and data transmission over a single cable

Power over Ethernet (PoE) is a technology that allows both power and data to be transmitted simultaneously over a single Ethernet cable. This capability simplifies the installation of devices such as IP cameras, VoIP phones, and wireless access points, as it eliminates the need for separate power sources. By providing electrical power through the same cable used for data transmission, PoE enhances the flexibility of network design and reduces clutter from additional wiring. Other options focus on different aspects of networking. The transmission of data only does not account for the power component, which is a key feature of PoE. Increased network speed pertains to the performance of the network itself, rather than the capability of PoE, and segmentation of a network relates to dividing a network into different segments for performance and management, which is unrelated to the powering aspects of PoE technology.