Principal Firmware Engineer Interview Questions and Answers

Mesh network is a decentralized network topology where each node can communicate with other nodes directly.

• Mesh networks are self-healing and can continue to operate even if one or more nodes fail.

• They are used in IoT devices, smart homes, and industrial automation.

• Mesh networks can also be used in disaster management and military operations.

• Examples of mesh networks include Zigbee, Thread, and Bluetooth Mesh.

The software process involves planning, designing, coding, testing, and maintenance. Certifications like IEEE and ISO are applicable.

• The software process starts with planning and requirements gathering.

• Designing involves creating a blueprint of the software.

• Coding is the implementation of the design.

• Testing is done to ensure the software meets the requirements.

• Maintenance involves fixing bugs and updating the software.

• Certifications like IEEE and ISO ensure quality and standa...read more

IoT stands for Internet of Things. MQTT is a lightweight messaging protocol for IoT.

• IoT refers to the network of physical devices, vehicles, home appliances, and other items embedded with electronics, software, sensors, and connectivity.

• MQTT (Message Queuing Telemetry Transport) is a publish-subscribe messaging protocol designed for IoT devices with limited processing power and bandwidth.

• MQTT uses a broker to handle message distribution between publishers and subscribers.

• MQTT...read more