In a smart home project, a team is considering a protocol that can efficiently work in a constrained environment and can easily translate to HTTP for simplified integration with the web. They are most likely referring to:
- CoAP (Constrained Application Protocol)
- HTTP/2
- MQTT-SN (MQTT for Sensor Networks)
- WebSocket
CoAP (Constrained Application Protocol) is designed for constrained environments and is highly suitable for IoT applications. CoAP can be easily translated to HTTP, enabling integration with the web, while still being lightweight and efficient for constrained IoT devices.
For IoT networks that require low latency and lightweight security, ________ is often a recommended encryption method.
- AES-GCM
- ChaCha20-Poly1305
- DES
- RSA
In IoT networks needing low latency and lightweight security, ChaCha20-Poly1305 is recommended. It's a fast and secure encryption method, suitable for resource-constrained IoT devices.
Advanced IoT systems that integrate with AI often rely on ________ to make real-time decisions.
- Cloud computing
- Edge computing
- Mainframe computing
- Quantum computing
Advanced IoT systems frequently rely on Edge computing to make real-time decisions. Edge computing involves processing data locally on IoT devices or at the edge of the network, reducing latency and enabling quicker responses in real-time applications.
A significant privacy challenge in IoT is:
- Limited availability of data
- Unauthorized access to sensitive data
- Rapid device obsolescence
- Decreased connectivity options
A significant privacy challenge in IoT is unauthorized access to sensitive data. IoT devices often collect and transmit sensitive information, making them attractive targets for cyberattacks.
Which of the following best describes the role of fog nodes in fog computing?
- Acting as intermediate nodes that process data between edge devices and the cloud.
- Controlling the temperature and humidity in data centers.
- Providing internet access to IoT devices.
- Storing data locally on IoT devices.
Fog nodes in fog computing act as intermediate nodes between edge devices and the cloud. They process and filter data locally before sending only the relevant data to the cloud, reducing the amount of data transmitted and improving efficiency.
A professional athlete is looking for a device that can monitor heart rate, sleep patterns, and physical activity. This is an example of:
- IoT (Internet of Things) technology
- Embedded systems
- Wearable technology
- Quantum computing
The device described, capable of monitoring heart rate, sleep patterns, and physical activity, is an example of wearable technology. Wearable devices like fitness trackers and smartwatches are designed to collect and analyze data related to the user's health and activities, making them popular choices for professional athletes and health enthusiasts.
A company is developing a remote surgery solution where surgeons can operate from miles away. This solution would greatly benefit from the ________ feature of 5G.
- Energy Efficiency
- High Bandwidth
- Low Latency
- Wide Coverage
The low latency feature of 5G is critical for remote surgery. Low latency ensures minimal delay in data transmission, which is crucial in surgical procedures where real-time responses are essential. High bandwidth, wide coverage, and energy efficiency are also valuable but have different priorities in this scenario.
When considering bi-directional communication in IoT, the protocol often recommended due to its low overhead and real-time capabilities is ________.
- HTTP
- MQTT
- WebSockets
- XMPP
For bi-directional communication in IoT, the protocol often recommended due to its low overhead and real-time capabilities is WebSockets. WebSockets provide full-duplex communication channels over a single TCP connection. They are well-suited for scenarios where low latency and real-time data exchange are crucial, making them a popular choice in IoT applications.
With the influx of IoT devices in homes, ________ has become a prevalent technique to safeguard users' identities.
- Biometric Authentication
- Ethical Hacking
- IoT Protocols
- Machine Learning
With the influx of IoT devices, "Biometric Authentication" has become a prevalent technique to safeguard users' identities. Biometric methods, like fingerprint or facial recognition, offer strong user authentication.
Digital certificates in IoT devices primarily help in:
- Data Encryption
- Data Storage
- Device Authentication
- User Authentication
Digital certificates in IoT devices primarily aid in device authentication. These certificates ensure that the device is genuine and authorized to access or exchange data within the network. While data storage and encryption are important, they are not the primary role of digital certificates in IoT.