When working with MV Sense APIs, which type of protocol is MQTT based upon?

MQTT (Message Queuing Telemetry Transport) is an OASIS standard messaging protocol designed for constrained devices and low-bandwidth, high-latency, or unreliable networks. Its fundamental architectural model is publish-subscribe (pub/sub). In this model, a client (publisher) sends a message to a central broker on a specific "topic." Other clients (subscribers) that have registered their interest in that topic receive the message from the broker. The Meraki MV Sense API uses this model to stream real-time analytics data from cameras (publishers) to subscribed client applications.

B: Simple Mail Transport Protocol (SMTP) is a communication protocol used exclusively for electronic mail transmission. C: MQTT is renowned for being an extremely lightweight protocol, making "heavyweight" the direct opposite of its design philosophy. D: Computer vision is the application domain that generates the data; MQTT is the general-purpose messaging protocol used for transport. ---

1. Cisco Meraki Developer Hub, "MV Sense API" Documentation. In the section describing the "MV Sense MQTT Broker," the documentation details how to "subscribe to the MQTT topic" to receive data. This subscription mechanism is the core of the publish-subscribe model. (Source: Cisco Meraki Official Documentation).

2. OASIS Standard, "MQTT Version 5.0." 07 March 2019. Section 1.2, "Architectural Overview," explicitly states: "MQTT is a publish/subscribe messaging protocol. The publish/subscribe message pattern requires a message broker." (Source: Official Vendor/Standards Body Documentation).

3. Cisco, "A Guide to IoT Protocols." This guide describes various IoT protocols and defines MQTT as follows: "MQTT is a publish/subscribe-based messaging protocol that runs on top of TCP/IP. It is designed for connections with remote locations where a small code footprint is required or the network bandwidth is limited." (Source: Cisco Official Documentation).