UPSC Prelims GS - 2016

Question 30
MEDIUMCorrect: +2Incorrect: -2

With reference to ‘LiFi’, recently in the news, which of the following statements is/are correct?
1. It uses light as the medium for high-speed data transmission.
2. It is a wireless technology and is several times faster than ‘WiFi’.
Select the correct answer using the code given below.

    a
    1 only
    b
    2 only
    c
    Both 1 and 2
    d
    Neither 1 nor 2