Which of the following is a common communication protocol used by IoT devices?

Question

Options

• AMQTT
• BHTTPS
• CSSH
• DFTP

• A
  95% (18)
• B
  5% (1)

Explanation

MQTT (Message Queuing Telemetry Transport) is the correct answer because it was designed specifically for constrained devices and low-bandwidth, high-latency networks - exactly the conditions IoT devices operate under. It uses a lightweight publish/subscribe model, making it ideal for sensors and embedded systems that need to send small data packets efficiently.

HTTPS (B) is a secure web protocol built for full request/response cycles in browsers and APIs - far too heavyweight for resource-limited IoT devices, though it can technically be used. SSH (C) is a remote shell access protocol for securely administering machines, not for device-to-device data messaging. FTP (D) is a file transfer protocol for moving large files between systems, completely unsuitable for real-time telemetry.

Memory tip: Think "MQTT = IoT's postal service" - devices publish messages to a topic and others subscribe, like a mailbox, keeping traffic minimal. If you see "IoT + lightweight + publish/subscribe," think MQTT instantly.

No community discussion yet for this question.