engineering recuitment NIC NIELIT Scientist B 2023 Mock Test Computer Networks Basics of Wi-Fi IEEE 802.11
Which of the following statement is correct about Wi-Fi and Li-Fi?
I. Wi-Fi uses light emitting diodes for data transmission.
II. Li- Fi works very well in dense environment.
III. In Li-Fi, data transfer speed is about 1 Gbps.
1
I
2
II
3
I and II
4
II and III