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IoT & Emerging Technologies Flashcards

6 cards from real IT and Technology practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 IoT & Emerging Technologies flashcards as text

  1. Which communication protocol is most commonly used for lightweight IoT messaging?

    Answer: MQTT

    MQTT is a lightweight publish-subscribe protocol designed for constrained devices and low-bandwidth, high-latency IoT networks.

  2. What is edge computing in the context of IoT?

    Answer: Processing data closer to the device rather than sending everything to the cloud

    Edge computing moves processing and storage closer to where data is generated, reducing latency and bandwidth usage compared to centralized cloud processing.

  3. Which security concern is most prevalent in IoT deployments?

    Answer: Use of default or hardcoded credentials

    Many IoT devices ship with default usernames and passwords that users never change, making them easy targets for botnet attacks like Mirai.

  4. What does a digital twin represent in IoT?

    Answer: A virtual replica of a physical device or system for simulation

    A digital twin is a virtual model that mirrors a physical asset in real time, enabling simulation, monitoring, and predictive maintenance.

  5. Which wireless technology is designed for long-range, low-power IoT communication?

    Answer: LoRaWAN

    LoRaWAN (Long Range Wide Area Network) is designed for IoT devices that need to transmit small amounts of data over several kilometers while running on battery for years.

  6. In IoT security, what is firmware over-the-air (FOTA) update?

    Answer: Wirelessly delivering firmware updates to IoT devices remotely

    FOTA allows manufacturers to remotely push security patches and feature updates to deployed IoT devices without physical access.