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Almost every year one to two questions are based on wireless communication technologies. Check the previous years questions to decipher the trend-
2018 Prelims
Q- In which of the following areas can GPS technology be used ?
1. Mobile phone operations
2. Banking operations
3. Controlling the power grids
Select the correct answer using the code given below :
(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
Q- When the alarm of your smartphone rings in the morning, you wake up and tap it to stop the alarm which causes your geyser to be switched on automatically. The smart mirror in your bathroom shows the day’s weather and also indicates the level of water in your overhead tank. After you take some groceries from your refrigerator for making breakfast, it recognises the shortage of stock in it and places an order for the supply of fresh grocery items. When you step’ out of your house and lock the door, all lights, fans, geysers and AC machines get switched off automatically. On your way to office, your car warns you about traffic congestion ahead and suggests an alternative route, and if you are late for a meeting, it sends a message to your office accordingly.
In the context of emerging communication technologies, which one of the following terms best applies to the above scenario?
(a)Border Gateway Protocol
(b) Internet of Things
(c) Internet Protocol
(d) Virtual Private Network
2017 Prelims
Organic Light Emitting Diodes (OLEDs) are used to create digital display in many devices. What are the advantages of OLED displays over Liquid Crystal displays?
1. OLED displays can be fabricated on flexible plastic substrates.
2. Roll-up displays embedded in clothing can be made using OLEDs.
3. Transparent displays are possible using OLEDs.
Select the correct answer using the code given below
(a) 1 and 3 only
(b) 2 only
(c) 1, 2 and 3
(d) None of the above statements is correct
2016 Prelims
10. ‘Project Loon’, sometimes seen in the news, is related to
(a) waste management technology
(b) wireless communication technology
(c) solar power production technology
(d) water conservation technology
2016 Prelims
With reference to ‘Li-Fi’, 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
2015 Prelims
With reference to ‘Near Field Communi-cation (NFC) Technology’, which of the following statements is/are correct?
1. It is a contactless communication technology that uses electromagnetic radio fieJds.
2. NFC is designed for use by devices which can be at a distance of even a metre from each other:
3. NFC can use encryption when sending sensitive information.
Select the correct answer using the code given below.
(a) 1 and 2 only
(b) 3 OnlY
(e) 1 and 3 only
(d) 1, 2 and 3
Even before that questions have come on –
WiFi
Bluetooth,
Infrared technology
4G ,LTE etc,
so it’s a favourite topic for prelims.
The above questions were to show the trend in UPSC prelims.
In 2019 Prelims we got LTE/VoLTE and other questions from this topic,it was covered in our Probables List.
IASNOVA PRO subscribers can access the compilation of wireless communication technologies for UPSC Prelims 2020 at the link given below.
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