Which of the following describes the function of an injector?
A.
To provide only data connectivity
B.
To supply power across a cable
C.
To improve wireless performance
D.
To extend a network connection
The Answer Is:
B
This question includes an explanation.
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.
[Reference: "CompTIA A+ Complete Practice Tests" by Jeff T. Parker – Chapter 10, Question 77, page 585., , , ]
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