Build an IoT Blockchain Network for a Supply Chain Quiz Answers

Get All Module Build an IoT Blockchain Network for a Supply Chain Quiz Answers

Learn how to use a an IoT Asset Tracking device, build a blockchain network, and configure a Node-RED dashboard to monitor a perishable network supply chain. You can also use a simulated tracker if you don’t want to purchase and set up the hardware.

When multiple participants, such as farms, manufacturers, processing plants, trucks, ports, ships, distribution centers, and consumer retail outlets, are involved in the safe shipment and payment of cargo, you can use a blockchain network to record immutable transactions as the cargo shipment progresses through its delivery journey. In this course, you’ll do the following main tasks: – Configure an asset tracker IoT device (or use the simulator) – Build a blockchain business network in Hyperledger Composer – Build an IoT application to visualize and analyze the data from the asset tracker: — Create an IoT starter app in IBM Cloud — Create Node-RED flows to control and receive events from Particle.io, write events to the blockchain network, and load blockchain transaction history — Use Node-RED to build an asset tracking dashboard

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Lab 1: Build a blockchain network

Question: The default blockchain Perishable Goods Network in Hyperledger Composer includes which participants? Select all that apply.

  • Grower
  • Exporter
  • Shipper
  • Importer

Question: Which of these file types is used for a model file?

  • BNA
  • JS
  • CTO
  • ACL

Question: To capture conditions for a crash, a hard jolt, or other incidents based on the accelerometer data, what field did you add to the Contract asset?

  • DateTime arrivalDateTime
  • Double maxAccel
  • AccelReading[] AccelReadings optional
  • ShipmentStatus status

Question: What is the purpose of this event: TemperatureThresholdEvent()?

  • To notify participants when agreed on temperature thresholds are exceeded
  • To alert the delivery vehicle driver or owner when temperatures exceed a specific threshold
  • To force the temperature sensor on a delivery vehicle to rest
  • To notify participants that the contract has been breached

Question: In a DevOps pipeline, what occurs during the BUILD phase? Select all that apply.

  • Clones your GitHub repository 
  • Provisions and configures an instance of the blockchain network
  • Runs all of the automated unit tests for all of your smart contracts
  • Installs any dependencies

Understand the imported Node-RED flows

Question: Which task is not done by the Start Particle Electron flow?

  • Sends a command to enable or disable the device geolocation reporting
  • Controls the interval of the report
  • Queries the temperature blockchain transaction history
  • Retrieves accelerometer and current temperature data

Question: Which flow takes the arriving data, reformats it, and calls the next flow to write the Particle Electron events to the transaction history of the blockchain network?

  • Track Asset History
  • Load Blockchain
  • Start Particle Electron
  • Particle Receiver

Question: Which flow sets up a series of GET and POST commands?

  • Track Asset History
  • Blockchain REST API
  • Load Blockchain
  • Start Particle Electron

Question: The Track Asset History flow filters the array to the selected device and time frame.

  • True
  • False

Question: What is one task that is done by the Load Blockchain flow?

  • Sends a command to enable or disable the device geolocation reporting
  • Provisions and configures an instance of the blockchain network
  • Queries the temperature blockchain transaction history
  • Constructs a variety of Node-RED dashboard UI elements

Final Exam

Question: What is the purpose of exposing the blockchain network as a REST API?

  • To allow appropriate participants in the network to update the blockchain contract
  • To allow other developers to access the blockchain network
  • To allow the network to run on IBM Cloud
  • To manipulate the blockchain from Node-RED

Question: What is included in the Internet of Things Platform Starter? Select all that apply.

  • CouchDB database
  • Node-RED Node.js web server
  • Cloudant database
  • IoT platform service

Question: What is the purpose of the ParticleSSE node in the Particle Receiver flow?

  • Sends a command to enable or disable the device geolocation reporting
  • Sets up a POST command that writes a temperature event into the blockchain as a transaction
  • Allows you subscribe to incoming server-sent events (SSE) on a Particle cloud through a persistent connection
  • Queries the temperature blockchain transaction history

Question: What is the main task of this flow?

  • Queries the temperature blockchain transaction history
  • Create a UI dashboard to track assets
  • Sends a command to enable or disable the device geolocation reporting
  • Connects your Node-RED flow to IBM Cloud

Question: Hyperledger Composer REST APIs cannot be used by Node-RED to communicate to the blockchain perishable network.

  • True
  • False

Question: What must you add to the model file for the IoT data to be associated with the asset and shipment?

  • IoT variables
  • A field for the accelerometer value
  • Events that alert the appropriate participants when agreed on thresholds are exceeded
  • An updated logic.js file

Question: When you export the code for your network from Hyperledger Composer, what type of file is created?

  • BNA
  • JS
  • JSON
  • ZIP or TAR

Question: You use the Google Maps Locator API to triangulate the geographical location of a device.

  • True
  • False

Question: Using a blockchain network for IoT Asset Tracking is an important blockchain use case because it can be used to record an immutable record of the following attributes. Select all that apply.

  • Where the asset was located during its journey
  • How long the truck driver took a lunch break
  • When was the asset at a particular location
  • What environmental conditions (temperature, vibration) the asset was exposed to

Question: The Particle Electron program is written in which language?

  • Java
  • C/C++
  • Python
  • Go

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