CompTIA
220-1201 · Question #41
Which of the following describes the function of an injector?
The correct answer is B. To supply power across a cable. A PoE injector is used to add power to an Ethernet cable, enabling the cable to deliver both power and data. This is crucial when connecting to PoE-enabled devices like IP cameras or wireless access points that are far from power outlets.
Submitted by katya_ua· Mar 30, 2026Networking
Question
Which of the following describes the function of an injector?
Options
- ATo provide only data connectivity
- BTo supply power across a cable
- CTo improve wireless performance
- DTo extend a network connection
How the community answered
(68 responses)- A1% (1)
- B93% (63)
- C1% (1)
- D4% (3)
Explanation
A PoE injector is used to add power to an Ethernet cable, enabling the cable to deliver both power and data. This is crucial when connecting to PoE-enabled devices like IP cameras or wireless access points that are far from power outlets.
Topics
#PoE injector#Power over Ethernet#Network cabling
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