CoAP Reliability and Message Types Quiz

Which protocol is considered lossless, reliable, and connection-oriented?

What is the role of the MQTT broker in securing the connection?

How does the MQTT broker ensure security?

Which protocol uses the User Datagram Protocol (UDP) in the transport layer?

Which of the following communication structures is used in most IoT applications and technologies?

Which network topology represents a geometric relationship of the links and nodes of the network?

Which type of network topology is uncommon in IoT networks?

Which type of network topology has a point-to-multipoint communication link between a device and other devices in the network?

Which protocol uses Confirmable messages and Non-confirmable messages for reliability?

Which protocol uses Datagram Transport Layer Security (DTLS) to secure the connection?

Which protocol supports both publish/subscribe and request/response messaging models?

Which layer in the IoT functional stack is responsible for connecting smart devices to the network?

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 has higher security due to the sensor nodes not being directly connected to each other?

Which topology is more vulnerable to security attacks, where breaching a single node may endanger the entire network?

Which topology is simpler and cheaper to deploy compared to mesh topology, but depends on a single hub and has limited coverage?

Which IoT protocol is specifically optimized for data collection in constrained networks?

Which IoT protocol is more suitable for communication on browser-based clients with high capabilities?

Which IoT protocol has a publish/subscribe (pub/sub) network model?

Which IoT protocol supports multiple publishers and subscribers?

Which of the following best describes the limitations of IoT networks compared to IT networks?

In which type of use case are low-power communication technologies that can cover wide areas required?

What is the purpose of developing various communication standards, technologies, and protocols for IoT?

What should an IoT network architect consider when selecting the right technology for an IoT use case?

Which wired IoT technology is typically secure, reliable, and supports high data rates?

Which wired IoT technology is unsuitable for most IoT applications due to high implementation costs and low scalability and range?

Which wired IoT technology was initially developed as a 10 Mbps wired network in the 1980s?

Which wired IoT technology currently supports even tens of Gbps data rates?

Which wired IoT technology connects IoT devices through cables and Ethernet switches?

Which wired IoT technology uses sophisticated modulation techniques, such as orthogonal frequency division multiplexing (OFDM)?