17. How is near field communication like Ethernet?
(A) It does not enforce security itself, but relies on higher-level protocols such as SSL.
(B) It forces each endpoint to communicate through a switch.
(C) It provides collision avoidance.
(D) All of the above.
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統計: A(1), B(0), C(0), D(0), E(0) #3565659
統計: A(1), B(0), C(0), D(0), E(0) #3565659