Poe Extra Flashcards
What does PoE stand for? Options: (A) Power over Ethernet, (B) Power on Ethernet, (C) Power of Ethernet, (D) Port over Ethernet
Correct Answer: (A) Power over Ethernet. Explanation: PoE allows electrical power and data to be transmitted over the same Ethernet cable.
What is the primary purpose of PoE? Options: (A) To provide power to network devices, (B) To boost Wi-Fi signals, (C) To improve network speed, (D) To manage IP addresses
Correct Answer: (A) To provide power to network devices. Explanation: PoE powers devices like IP cameras and wireless access points through Ethernet cables.
What is the maximum power output of IEEE 802.3af (PoE)? Options: (A) 15.4W, (B) 25.5W, (C) 60W, (D) 100W
Correct Answer: (A) 15.4W. Explanation: IEEE 802.3af (PoE) delivers up to 15.4 watts of power per port.
What is the maximum power output of IEEE 802.3at (PoE+)? Options: (A) 15.4W, (B) 25.5W, (C) 60W, (D) 100W
Correct Answer: (B) 25.5W. Explanation: IEEE 802.3at (PoE+) supports up to 25.5 watts per port.
Which device is commonly powered by PoE? Options: (A) IP camera, (B) Desktop computer, (C) External hard drive, (D) Monitor
Correct Answer: (A) IP camera. Explanation: IP cameras are a common example of devices powered via PoE.
What is a PoE injector? Options: (A) A device that adds power to Ethernet cables, (B) A switch for managing IP addresses, (C) A tool for crimping cables, (D) A wireless access point
Correct Answer: (A) A device that adds power to Ethernet cables. Explanation: PoE injectors provide power to devices that are not connected to a PoE-enabled switch.
What is the main advantage of a PoE-enabled switch? Options: (A) Eliminates the need for separate power cables, (B) Increases network speed, (C) Improves Wi-Fi range, (D) Reduces network congestion
Correct Answer: (A) Eliminates the need for separate power cables. Explanation: PoE switches supply power and data through a single Ethernet cable.
What is the difference between a PoE injector and a PoE switch? Options: (A) Injectors require external power; switches do not, (B) Switches provide multiple PoE ports, (C) Injectors boost data speeds; switches do not, (D) There is no difference
Correct Answer: (B) Switches provide multiple PoE ports. Explanation: PoE switches can power multiple devices, while injectors typically serve a single device.
