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Node-RED: basics to bots Cognitive Class Exam Quiz Answers

Node-RED: basics to bots Cognitive Class Certification Answers

Question 1: You can run Node-RED on the IBM Cloud without installing it locally on your computer.

  • True
  • False

Question 2: You can connect services like Watson Assistant to a Node-RED instance running on IBM Cloud.

  • True
  • False

Question 3: The three main types of nodes are Input, Output, and Objects.

  • True
  • False

Question 4: You use the Debug tab in the flow editor to read the documentation for a node.

  • True
  • False

Question 5: An inject node is a type of input node.

  • True
  • False

Question 1: The HTTP In node can be used to create URLs for web pages and APIs.

  • True
  • False

Question 2: A function node can be used to process the output of a node before feeding it in input to another node.

  • True
  • False

Question 3: Node-RED offers a Template node.

  • True
  • False

Question 4: Template nodes can contain JavaScript code.

  • True
  • False

Question 5: language identify is a node made available by the Watson Language Translator service.

  • True
  • False

Question 1: You can add more functionalities by leveraging nodes from both the Node-RED project and the wider community.

  • True
  • False

Question 2: Microphone and speaker nodes are available through community libraries.

  • True
  • False

Question 3: The Node-RED community has created nodes for every possible need.

  • True
  • False

Question 4: For the language translator node to become available, you can use API keys to access the service or connect (bind) the service.

  • True
  • False

Question 5: We can use a function node to process the output of a node, preparing it for the expected input of a different node.

  • True
  • False

Question 1: Community nodes are the only way to integrate with third-party web services.

  • True
  • False

Question 2: You can import a JSON flow from your clipboard into Node-RED by clicking Import > Clipboard.

  • True
  • False

Question 3: Integrating Facebook Messenger in your Node-RED application requires that you first obtain a Page Access Token and Verify Token from Facebook.com.

  • True
  • False

Question 4: The facebook messenger node can only read messages from Facebook Messenger, not write them.

  • True
  • False

Question 5: We can transcribe and translate captions for a video by leveraging Watson Speech to Text and Watson Language Translator.

  • True
  • False

Question 1: You can pass a video file straight into the Speech to Text Service

  • True
  • False

Question 2: The HTTP input node is limited to GET requests.

  • True
  • False

Question 3: There are three HTTP core nodes, http (input), http responde (output), and http request (function).

  • True
  • False

Question 4: The http input node is used to send HTTP requests.

  • True
  • False

Question 5: The http request node is used to send HTTP requests.

  • True
  • False

Question 1: What do you use the inject node for?

  • Inject a file
  • Initiate a flow
  • Define an HTTP route
  • As a camera

Question 2: The Watson Language Identify node expects its input text to be provided in what object?

  • msg.lang
  • msg.languages
  • msg.payload
  • msg.input

Question 3: For Node-RED on IBM Cloud, how do you install additional nodes?

  • Add new dependencies in package.json
  • Add new dependencies in manifest.yml
  • Add new dependencies in settings.js
  • Add new dependencies in red.js

Question 4: What can you use function nodes for?

  • Define HTML templates
  • Create virtual wires between flows
  • Create JavaScript code blocks
  • Define new nodes

Question 5: The Watson Speech to Text node outputs to which object?

  • msg.transcription
  • msg.payload
  • msg.translation
  • msg.result

Question 6: What are the three main categories of nodes?

  • input, inject, function
  • storage, input, output
  • input, output, function
  • analysis, advanced, output

Question 7: In this course, the microphone node from Lab 3 is available as a core Node-RED node.

  • True
  • False

Question 8: What does the Watson Tone Analyzer service do?

  • Analyzes emotions, such as happy, sad, confident, anger, in text
  • Predicts personality characteristics, such as needs and values, in text
  • Looks for trends and patterns in text
  • Analyzes text to extract metadata from content such as concepts, entities, keywords, categories

Question 9: The http request node is used to send HTTP requests.

  • True
  • False

Question 10: Node-RED is based on which programming language?

  • Python
  • Ruby
  • Java
  • Node.js

Introduction to Node-RED: basics to bots

Node-RED is an open-source flow-based development tool for visual programming developed by IBM. It provides a browser-based editor that makes it easy to wire together devices, APIs, and online services to create IoT (Internet of Things) applications, automation workflows, and more. It’s built on Node.js, which means it’s lightweight and runs on various platforms.

Here’s a basic introduction to Node-RED and how you can use it to create bots:

  1. Installation: Node-RED can be installed globally or locally using npm (Node Package Manager). Once installed, you can start Node-RED by running the command node-red in your terminal.
  2. Flow Editor: Node-RED provides a web-based flow editor where you can create your applications by wiring together nodes. Nodes are the basic building blocks of Node-RED applications, representing inputs, outputs, functions, and more.
  3. Nodes: Nodes are categorized into various types:
    • Input Nodes: These nodes represent sources of data or events, such as HTTP requests, MQTT messages, or Twitter streams.
    • Output Nodes: These nodes represent destinations for data, such as HTTP responses, email messages, or database entries.
    • Function Nodes: These nodes allow you to write JavaScript functions to manipulate data or perform custom logic.
    • Utility Nodes: These nodes provide various utility functions, such as debugging, timing, and error handling.
  4. Wiring: You can connect nodes together by dragging and dropping wires between their output and input ports. This creates a flow where data flows from one node to another, allowing you to create complex workflows.
  5. Creating Bots: To create a bot using Node-RED, you can use input nodes to receive messages from platforms like Slack, Facebook Messenger, or Telegram. Then, use function nodes to process the messages, perform actions, and generate responses. Finally, use output nodes to send the responses back to the user.
  6. Adding Functionality: You can add various functionalities to your bot using function nodes, such as natural language processing, sentiment analysis, or integration with external APIs.
  7. Deploying: Once you’ve created your bot, you can deploy it to a server or cloud platform where it can run continuously and interact with users.
  8. Extending: Node-RED is highly extensible, allowing you to install additional nodes from the Node-RED library or create your own custom nodes to integrate with other services and devices.

Node-RED’s visual programming approach makes it easy to create complex applications without writing a lot of code, making it an excellent choice for building bots and other IoT applications.

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