9A) Electronics and IT (Prelims PYQs)

1] With reference to Non-Fungible Tokens (NFTs), consider the following statements: [2022]
1. They enable the digital representation of physical assets.
2. They are unique cryptographic tokens that exist on a blockchain.
3. They can be traded or exchanged at equivalency and therefore can be used as a medium of commercial transactions.
Which of the statements given above are correct?

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

2] Consider the following: [2022]
1. Aarogya Setu
2. CoWIN
3. DigiLocker
4. DIKSHA
Which of the above are built on top of open-source digital platforms?

a) 1 and 2 only
b) 2, 3 and 4 only
c) 1, 3 and 4 only
d) 1, 2, 3 and 4

3] With reference to Web 3.0, consider the following statements: [2022]
1. Web 3.0 technology enables people to control their own data.
2. In the Web 3.0 world, there can be blockchain based social networks.
3. Web 3.0 is operated by users collectively rather than a corporation.
Which of the statements given above are correct?

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

4] With reference to “Software as a Service (SaaS)”, consider the following statements: [2022]
1. SaaS buyers can customise the user interface and can change data fields.
2. SaaS users can access their data through their mobile devices.
3. Outlook, Hotmail and Yahoo! Mail are forms of SaaS.
Which of the statements given above are correct?

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

5] Consider the following communication technologies: [2022]
1. Closed-circuit Television
2. Radio Frequency Identification
3. Wireless Local Area Network
Which, of the above are considered Short-Range devices/technologies?

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

6] Consider the following activities: [2020]
1. Spraying pesticides on a crop field
2. Inspecting the craters of active volcanoes
3. Collecting breath samples from spouting whales for DNA analysis
At the present level of technology, which of the above activities can be successfully carried out by using drones?

a) 1 and 2 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3

7] With the present state of development, Artificial Intelligence can effectively do which of the following? [2020]
1. Bring down electricity consumption in industrial units
2. Create meaningful short stories and songs
3. Disease diagnosis
4. Text-to-Speech Conversion
5. Wireless transmission of electrical energy
Select the correct answer using the code given below:

a) 1, 2, 3 & 5 only
b) 1, 3 & 4 only
c) 2, 4 & 5 only
d) 1, 2, 3, 4 & 5

8] With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? [2020]
1. VLC uses electromagnetic spectrum wavelengths 375 to 780 nm.
2. VLC is known as long-range optical wireless communication.
3. VLC can transmit large amounts of data faster than Bluetooth.
4. VLC has no electromagnetic interference.
Select the correct answer using the code given below:

a) 1, 2 & 3 only
b) 1, 2 & 4 only
c) 1, 3 & 4 only
d) 2, 3 & 4 only

9] With reference to “Blockchain Technology”, consider the following statements: [2020]
1. It is a public ledger that everyone can inspect, but which no single user controls.
2. The structure and design of blockchain is such that all the data in it are about cryptocurrency only.
3. Applications that depend on basic features of blockchain can be developed without anybody’s permission.
Which of the statements given above is/are correct?

a) 1 only
b) 1 and 2 only
c) 2 only
d) 1 and 3 only

10] In India, under cyber insurance for individuals, which of the following benefits are generally covered, in addition to payment for the loss of funds and other benefits? [2020]
1. Cost of restoration of the computer system in case of malware disrupting access to one’s computer
2. Cost of a new computer if some miscreant wilfully damages it, if proved so
3. Cost of hiring a specialised consultant to minimize the loss in case of cyber extortion
4. Cost of defence in the Court of Law if any third party files a suit
Select the correct answer using the code given below:

a) 1, 2 & 4 only
b) 1, 3 & 4 only
c) 2 & 3 only
d) 1, 2, 3 & 4

11] With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)? [2019]
1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G.
2. LTE is data-only technology and VoLTE is voice-only technology.
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

12] In the context of digital technologies for entertainment, consider the following statements: [2019]
1. In Augmented Reality (AR), a simulated environment is created and the physical world is completely shut out.
2. In Virtual Reality (VR), images generated from a computer are projected onto real-life objects or surroundings.
3. AR allows individuals to be present in the world and improves the experience using the camera of smart-phone or PC.
4. VR closes the world, and transposes an individual, providing complete immersion experience.
Which of the statements given above is/are correct?

a) 1 and 2 only
b) 3 and 4
c) 1, 2 and 3
d) 4 only

13] Consider the following statements: [2019]
A digital signature is
1. An electronic record that identifies the certifying authority issuing it
2. Used to serve as a proof of identity of an individual to access information or server on Internet
3. An electronic method of signing an electronic document and ensuring that the original content is unchanged
Which of the statements given above is/are correct?

a) 1 only
b) 2 and 3 only
c) 3 only
d) 1, 2 and 3

14] In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices? [2019]
1. Location identification of a person
2. Sleep monitoring of a person
3. Assisting the hearing impaired person
Select the correct answer using the code given below:

a) 1 only
b) 2 and 3 only
c) 3 only
d) 1, 2 and 3

15] The terms “WannaCry , Petya and Eternal Blue” sometimes mentioned in the news recently are related to: [2018]

a) Exoplanets
b) Cryptocurrency
c) Cyber attacks
d) Mini Satellites

16] Consider the following pairs: [2018]

Which of the pairs given above is/are correctly matched?

a) 1 and 3 only
b) 2 only
c) 2 and 3 only
d) 1, 2 and 3

17] The identity platform ‘Aadhar’ provides open “Application Programming Interfaces (APIs)”. What does it imply? [2018]
1. It is integrated into an electronic device.
2. Online authentication using iris is possible.
Which of the statements given above is/are correct?

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

18] Which of the following is/are the aim/aims of “Digital India” Plan of the Government of India? [2018]
1. Formation of India’s own internet companies like China did.
2. Establish a policy framework to encourage overseas multinational corporations that collect Big Data to build their last data centres within our national geographical boundaries.
3. Connect many of our villages to the Internet and bring Wi-Fi to many of our schools, public places nd major tourist centres.
Select the correct answer using the code given below:

a) 1 and 2 only
b) 3 only
c) 2 and 3 only
d) 1, 2 and 3

19] 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 and 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? [2018]

a) Border Gateway Protocol
b) Internet Of Things
c) Internet Protocol
d) Visual Private Network

20] “3D Printing” has applications in which of the following? [2018]
1. Preparation of confectionery items
2. MAnufacture of bionic cars
3. Automotive industry
4. Data processing technologies
select the correct answer using the code given below;

a) 1, 3 and 4 only
b) 2,3 and 4 only
c) 1 and 4 only
d) 1, 2, 3, 4 and 5

21] In India, it is legally mandatory for which of the following to report on cyber security incidents? [2017]
1. Service providers
2. Data centres
3. Body corporate
Select the correct answer using the code given below:

a) 1 only
b) 1 and 2 only
c) 3 only
d) 1, 2 and 3

22] With reference to ‘Li-Fi’, recently in the news, which of the following statements is/are correct? [2016]
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

23] With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/are correct? [2015]
1. It is a contactless communication technology that uses electromagnetic radio fields
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
c) 1 and 3 only
d) 1, 2 and 3

24] In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? [2014]
1. Iris scanning
2. Retinal scanning
3. Voice recognition
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

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