Cognitive Class: Build an IoT Blockchain Network for a Supply Chain Exam Answers

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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.

Trainers	John Walicki, Jenn Foley, Michelle Carey
Organization	Cognitive Class
Audience	Blockchain, IoT, and Node-RED developers
Level	Intermediate
Language	English
Price	Free
Certificate	Yes
Build an IoT Blockchain Network for a Supply Chain	Click Here

Cognitive Class – Build an IoT Blockchain Network for a Supply Chain Answers

Lab 1: Build a blockchain network Answers

Graded quiz 1

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

1. Grower
2. Exporter
3. Shipper
4. Importer

2. Which of these file types is used for a model file?

1. BNA
2. JS
3. CTO
4. ACL

3. 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?

1. DateTime arrivalDateTime
2. Double maxAccel
3. AccelReading[] AccelReadings optional
4. ShipmentStatus status

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

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

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

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

Understand the imported Node-RED flows Answers

Graded quiz 2

1. Which task is not done by the Start Particle Electron flow?

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

2. 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?

1. Track Asset History
2. Load Blockchain
3. Start Particle Electron
4. Particle Receiver

3. Which flow sets up a series of GET and POST commands?

1. Track Asset History
2. Blockchain REST API
3. Load Blockchain
4. Start Particle Electron

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

1. True
2. False

5. What is one task that is done by the Load Blockchain flow?

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

Build an IoT Blockchain Network for a Supply Chain Final exam Answers

Total Time	1hour
Pass %	50%

1. What is the purpose of exposing the blockchain network as a REST API?

1. To allow appropriate participants in the network to update the blockchain contract
2. To allow other developers to access the blockchain network
3. To allow the network to run on IBM Cloud
4. To manipulate the blockchain from Node-RED

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

1. CouchDB database
2. Node-RED Node.js web server
3. Cloudant database
4. IoT platform service

3. What is the purpose of the ParticleSSE node in the Particle Receiver flow?

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

4. What is the main task of this flow?

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

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

1. True
2. False

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

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

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

1. BNA
2. JS
3. JSON
4. ZIP or TAR

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

1. True
2. False

9. 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.

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

10. The Particle Electron program is written in which language?

1. Java
2. C/C++
3. Python
4. Go

Wrap Up

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