Drag and Drop Question The network team of a large international airport is creating a sensor network on their site using the Cisco LoRaWAN solution. Drag and drop the actions from the left to right n

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Explanation

This question tests the understanding of the correct sequential steps for deploying a Cisco LoRaWAN sensor network, focusing on physical installation, gateway onboarding, and network server configuration.

Approach. The correct interaction, as shown in the solution image, involves dragging the following three options to the target boxes in this specific order:

1. Install the sensors and LoRa gateways (power, network connectivity). This is the foundational physical step. Before any logical configuration or network integration can occur, the hardware components (sensors and gateways) must be physically deployed, powered on, and connected to the necessary network infrastructure.
2. Onboard the gateways in the Field Network Director. After physical installation, the gateways need to be registered and brought under management. Cisco Field Network Director (FND) is the management platform for Cisco's IoT solutions, including LoRaWAN gateways. Onboarding them in FND allows for their centralized monitoring, control, and configuration.
3. Configure the devices uplinks and downlinks on the LoRa network server. Once the gateways are installed and managed, the next crucial step for establishing communication is to configure the LoRa network server. This server is responsible for managing the data flow between end devices (sensors) and the application server, handling routing, security, and quality of service. Configuring uplinks (data from device to server) and downlinks (data from server to device) defines how the sensor data will travel through the LoRaWAN network.

Common mistakes.

• common_mistake. Common mistakes include incorrectly sequencing the steps or selecting options that are not directly part of the core LoRaWAN network deployment. For example:
• 'Set up a database and message broker': While essential for a complete IoT solution to store and process sensor data, this step typically belongs to the application layer or data ingestion pipeline, after the LoRaWAN network infrastructure (gateways, network server) is operational and handling device communication. It's not a primary step in building the LoRaWAN network itself.
• 'Add the sensors using the DevDI, AppDI, and AppKey': Adding individual sensors (end devices) is indeed a necessary step. However, it usually occurs after the foundational network infrastructure (gateways, and the LoRa network server with its basic communication configurations) is established. The 'Configure the devices uplinks and downlinks on the LoRa network server' step defines the communication framework, and then individual sensors are registered within that framework. Given only three slots, the provided correct sequence prioritizes the network infrastructure readiness over the provisioning of individual end-devices.

Concept tested. The core technical concept being tested is the sequential deployment and configuration workflow of a LoRaWAN (specifically Cisco LoRaWAN) sensor network. This includes understanding the logical dependencies between physical installation, gateway management, and LoRa network server configuration, and recognizing the different roles of components within the LoRaWAN architecture.

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