Podcast
Questions and Answers
Which protocol is considered lossless, reliable, and connection-oriented?
Which protocol is considered lossless, reliable, and connection-oriented?
What is the role of the MQTT broker in securing the connection?
What is the role of the MQTT broker in securing the connection?
How does the MQTT broker ensure security?
How does the MQTT broker ensure security?
Which protocol uses the User Datagram Protocol (UDP) in the transport layer?
Which protocol uses the User Datagram Protocol (UDP) in the transport layer?
Signup and view all the answers
Which of the following communication structures is used in most IoT applications and technologies?
Which of the following communication structures is used in most IoT applications and technologies?
Signup and view all the answers
Which network topology represents a geometric relationship of the links and nodes of the network?
Which network topology represents a geometric relationship of the links and nodes of the network?
Signup and view all the answers
Which type of network topology is uncommon in IoT networks?
Which type of network topology is uncommon in IoT networks?
Signup and view all the answers
Which type of network topology has a point-to-multipoint communication link between a device and other devices in the network?
Which type of network topology has a point-to-multipoint communication link between a device and other devices in the network?
Signup and view all the answers
Which protocol uses Confirmable messages and Non-confirmable messages for reliability?
Which protocol uses Confirmable messages and Non-confirmable messages for reliability?
Signup and view all the answers
Which protocol uses Datagram Transport Layer Security (DTLS) to secure the connection?
Which protocol uses Datagram Transport Layer Security (DTLS) to secure the connection?
Signup and view all the answers
Which protocol supports both publish/subscribe and request/response messaging models?
Which protocol supports both publish/subscribe and request/response messaging models?
Signup and view all the answers
Which layer in the IoT functional stack is responsible for connecting smart devices to the network?
Which layer in the IoT functional stack is responsible for connecting smart devices to the network?
Signup and view all the answers
Which topology is suitable for consumer marketplaces or IoT use cases like smart homes, where the required coverage and the number of sensors are limited?
Which topology is suitable for consumer marketplaces or IoT use cases like smart homes, where the required coverage and the number of sensors are limited?
Signup and view all the answers
Which topology has higher security due to the sensor nodes not being directly connected to each other?
Which topology has higher security due to the sensor nodes not being directly connected to each other?
Signup and view all the answers
Which topology is more vulnerable to security attacks, where breaching a single node may endanger the entire network?
Which topology is more vulnerable to security attacks, where breaching a single node may endanger the entire network?
Signup and view all the answers
Which topology is simpler and cheaper to deploy compared to mesh topology, but depends on a single hub and has limited coverage?
Which topology is simpler and cheaper to deploy compared to mesh topology, but depends on a single hub and has limited coverage?
Signup and view all the answers
Which IoT protocol is specifically optimized for data collection in constrained networks?
Which IoT protocol is specifically optimized for data collection in constrained networks?
Signup and view all the answers
Which IoT protocol is more suitable for communication on browser-based clients with high capabilities?
Which IoT protocol is more suitable for communication on browser-based clients with high capabilities?
Signup and view all the answers
Which IoT protocol has a publish/subscribe (pub/sub) network model?
Which IoT protocol has a publish/subscribe (pub/sub) network model?
Signup and view all the answers
Which IoT protocol supports multiple publishers and subscribers?
Which IoT protocol supports multiple publishers and subscribers?
Signup and view all the answers
Which of the following best describes the limitations of IoT networks compared to IT networks?
Which of the following best describes the limitations of IoT networks compared to IT networks?
Signup and view all the answers
In which type of use case are low-power communication technologies that can cover wide areas required?
In which type of use case are low-power communication technologies that can cover wide areas required?
Signup and view all the answers
What is the purpose of developing various communication standards, technologies, and protocols for IoT?
What is the purpose of developing various communication standards, technologies, and protocols for IoT?
Signup and view all the answers
What should an IoT network architect consider when selecting the right technology for an IoT use case?
What should an IoT network architect consider when selecting the right technology for an IoT use case?
Signup and view all the answers
Which wired IoT technology is typically secure, reliable, and supports high data rates?
Which wired IoT technology is typically secure, reliable, and supports high data rates?
Signup and view all the answers
Which wired IoT technology is unsuitable for most IoT applications due to high implementation costs and low scalability and range?
Which wired IoT technology is unsuitable for most IoT applications due to high implementation costs and low scalability and range?
Signup and view all the answers
Which wired IoT technology was initially developed as a 10 Mbps wired network in the 1980s?
Which wired IoT technology was initially developed as a 10 Mbps wired network in the 1980s?
Signup and view all the answers
Which wired IoT technology currently supports even tens of Gbps data rates?
Which wired IoT technology currently supports even tens of Gbps data rates?
Signup and view all the answers
Which wired IoT technology connects IoT devices through cables and Ethernet switches?
Which wired IoT technology connects IoT devices through cables and Ethernet switches?
Signup and view all the answers
Which wired IoT technology uses sophisticated modulation techniques, such as orthogonal frequency division multiplexing (OFDM)?
Which wired IoT technology uses sophisticated modulation techniques, such as orthogonal frequency division multiplexing (OFDM)?
Signup and view all the answers
Study Notes
IoT Network Topologies and Protocols
- IoT networks are typically lossy and constrained, limiting data exchange speed.
- IoT networks require special provisioning and configuration to minimize connectivity costs.
- Various communication standards, technologies, and protocols have been developed for IoT.
- Network topology determines how elements of an IoT network communicate with each other.
- Point-to-point communication allows data exchange between a single node and a gateway.
- Point-to-multipoint communication allows a gateway to communicate with multiple nodes.
- Mesh topology enables data to hop from one node to another before reaching the gateway.
- Full mesh networks have all nodes fully interconnected, while partial mesh networks have selected nodes with relaying functions.
- Star topology involves a central coordinating node that establishes point-to-point communication with sensor nodes.
- Mesh topology is suitable for limited coverage and consumer applications like smart homes.
- Star topology is suitable for massive IoT applications with geographically dispersed devices.
- IoT network protocols ensure messages are read and understood by other IoT devices or nodes.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on CoAP reliability and message types with this quiz. Learn about the differences between CoAP and MQTT and explore the concept of Confirmable messages. Perfect for IoT enthusiasts and developers!
