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 minor 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 term" best applies to the above scenario?

The scenario describes ordinary appliances (geyser, water-tank sensor, refrigerator that reorders stock, locks that switch off fans and ACs, a car that reroutes and messages your office) sharing data over a network and acting with little or no direct human operation. That is the Internet of Things (IoT).

• Border Gateway Protocol (A): an inter-domain routing protocol that exchanges reachability information between autonomous systems on the internet. It says nothing about household devices.
• Internet Protocol (C): the addressing and packet-delivery standard (IPv4, IPv6) that underlies all networks. It is the plumbing, not the application-level concept the question describes.
• Virtual Private Network (D): an encrypted tunnel giving secure remote access to a private network. Nothing here is about tunnelling or privacy.

Core concept: connected sensors, actuators and devices, linked to cloud analytics, enabling automation and remote control. Mains angle: smart cities, Digital India, and the policy questions on cybersecurity, device standards and data privacy that IoT raises.

Trap: candidates pick Internet Protocol because it sounds the most technical. The question asks for the application-level idea, not the protocol that carries the data.