Computer & Information Technology — UPSC Prelims Previous Year Questions

Q: Which one of the following words/phrases is most appropriately used to denote "an interoperable network of 3D virtual worlds that can be accessed simultaneously by millions of users, who can exert property rights over virtual items"?

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

Q: With reference to Web 3.0, consider the following statements: 1. Web 3.0 technology enables people to control their own data. 2. In 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?

Q: Which one of the following is the context in which the term "qubit" is mentioned?

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

Q: With reference to Non-Fungible Tokens (NFTs), consider the following statements: 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?

Q: With the present state of development, Artificial Intelligence can effectively do which of the following? 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:

Q: With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? 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:

Q: With reference to "Blockchain Technology", consider the following statements : 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 ?

Q: In India, the term 'Public Key Infrastructure' is used in the context of

Q: 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? 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 specialized 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:

Q: With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)? 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.

Q: Which of the following adopted a law on data protection and privacy for its citizens known as ‘General Data Protection Regulation’ in April 2016 and started implementation of it from 25th May, 2018?

Q: In the context of digital technologies for entertainment, consider the following statements: 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?

Q: Consider the following statements. 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?

Q: In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices? 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.

Q: The identity platform 'Aadhaar' provides open 'Application Programming Interfaces (APIs)'. What does it imply? 1. It can be integrated into any electronic device. 2. Online authentication using iris is possible. Which of the statements given above is/are correct?

Q: With reference to digital payments, consider the following statements: 1. BHIM app allows the user to transfer money to anyone with a UPI-enabled bank account. 2. While a chip-PIN debit card has four factors of authentication, BHIM app has only two factors of authentication. Which of the statements given above is/are correct?

Q: The terms 'WannaCry, Petya and EternalBlue' sometimes mentioned in the news recently are related to

Q: Consider the following pairs: Terms sometimes seen in news - Context/Topic 1. Belle II - Artificial Intelligence experiment 2. Blockchain - Digital/Cryptocurrency technology 3. CRISPR - Cas9 - Particle Physics Which of the pairs given above is/are correctly matched?

Q: When the alarm of your smartphone rings in the morning, you wake up and tap it to stop the alarm on which 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 recognizes 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?

Q: 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:

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

Q: 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.

Q: 'Project Loon', sometimes seen in the news, is related to

Q: 'SWAYAM', an initiative of the Government of India, aims at

Q: With reference to 'Bitcoins', sometimes seen in the news, which of the following statements is/are correct? 1. Bitcoins are tracked by the Central Banks of the countries. 2. Anyone with a Bitcoin address can send and receive Bitcoins from anyone else with a Bitcoin address. 3. Online payments can be sent without either side knowing the identity of the other. Select the correct answer using the code given below.

Q: Regarding ‘DigiLocker’, sometimes seen in the news, which of the following statements is/are correct? 1. It is a digital locker system offered by the Government under Digital India Programme. 2. It allows you to access your e-documents irrespective of your physical location. Select the correct answer using the code given below:

Q: With reference to ‘Near Field Communication (NFC) Technology’, which of the following statements is/are correct? 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.

Q: In addition to fingerprint scanning, which of the following can be used in the biometric identification of a person? 1. Iris scanning 2. Retinal scanning 3. Voice recognition Select the correct answer using the code given below.

Q: What is the difference between Bluetooth and Wi-Fi devices ?

Q: A new optical disc format known as the Blu-ray Disc (BD) is becoming popular. In what way is it different from the traditional DVD? 1. DVD supports Standard Definition video while BD supports High Definition video. 2. Compared to a DVD, the BD format has several times more storage capacity. 3. Thickness of BD is 2.4 mm while that of DVD is 1.2 mm. Which of the statements given above is/are correct?

Q: What is "Virtual Private Network"?

Q: Consider the following : 1. Bluetooth device 2. Cordless phone 3. Microwave oven 4. Wi-Fi device Which of the above can operate between 2.4 and 2.5 GHz range of radio-frequency band ?

Q: Which among the following do/does not belong/belongs to the GSM family of wireless technologies?

Q: WiMAX is related to which one of the following ?

Q: Who among the following is considered as the inventor of the World Wide Web (WWW)?

Q: Match List-I with List-II and select the correct answer using the code given below the lists: List-I (Company) A. Chevron B. AT&T C. AMD D. Enercon GmbH List-II (Major Area/Product) 1. Wind Energy 2. Oil 3. Telephone, Internet 4. Micro-processor Codes:

Q: What is the Universal Product Code (UPC) adopted for?

Q: What does the term ‘Dolby B’, or ‘Dolby C’ printed on tape recorders and other sound systems refer to?

Q: Consider the following statements : 1. A geostationary satellite is at an approximate height of 10,000 km 2. FM transmission of music is of very good quality because the atmospheric or man-made noises which are generally frequency variations can do little harm. Which of the statements given above is/are correct?

Q: Param Padam, which was in news recently, is

Q: Consider the following statements: 1. Smart Card is a plastic card with an embedded microchip. 2. Digital Technology is primarily used with new physical communication medium such as satellite and fibre optics transmission. 3. A digital library is a collection of documents in an organized electronic form available on the Internet only. Which of these statements given above is/are correct?

Q: The memory of a computer is commonly expressed in terms of Kilobytes or Megabytes. A byte is made up of

Q: For reproducing sound, a CD (Compact Disc) audio player uses a

Q: Assertion (A): Information technology is fast becoming a very important field of activity in India. Reason (R): Software is one of the major exports of the country and India has a very strong base in hardware.

Q: The world’s fastest computer has been able to perform (as of Dec. 1996)

Q: 104. The technique used to transmit audio signals in television broadcasts is