Q82. 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 codes given below.

Consider the following communication technologies: 1. Closed-circuit Television 2. Radio Frequency Identification 3. Wireless Local Area Network Which of the ab

With reference to Visible Light Communication (VLC) technology, which of the following statements are correct? 1. VLC uses electromagnetic spectrum wavelengths

Consider the following statements: 1. Smart card is a plastic card with an embedded microchip. 2. Digital technology is primarily used with new physical communi

With reference to “Blockchain Technology” consider the following statements: 1. It is a public ledger that everyone can inspect but which no single user control

Organic Light Emitting Diodes (OLEDs) are used to create digital displays in many devices. What are the advantages of OLED displays over Liquid Crystal displays

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 a

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 transmissio

Consider the following statements: A digital signature is __________ 1. an electronic record that identifies the certifying authority issuing it 2. used to serv

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 mon

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

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

What is the difference between a CFL and an LED lamp? 1. To produce light, a CFL uses mercury vapour and phosphor while an LED lamp uses semiconductor material.

Consider the following statements: The Reserve Bank of India’s recent directives relating to ‘Storage of Payment System Data’, popularly known as data diktat, c

The establishment of ‘Payment Banks’ is being allowed in India to promote financial inclusion. Which of the following statements is/are correct in this context?

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. Voi

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

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.

Consider the following activities: 1. Identification of narcotics on passengers at airports or in aircraft 2. Monitoring of precipitation 3. Tracking

Which one of the following words/phrases is most appropriately used to denote “an interoperable network of 3D virtual worlds that can be accessed simu

With reference to “Software as a Service (SaaS)”, consider the following statements: 1. SaaS buyers can customise the user interface and can change da

Which one of the following is the context in which the term “qubit” is mentioned?

What is a “Virtual Private Network”?

Recently, LASIK (Laser Assisted In Situ Keratomileusis) procedure is being made popular for vision correction. Which one of the following statements i

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

WiMAX is related to which one of the following