Questions

Having learned the lessons in this chapter, try answering the following questions on your own:

1. True/False. The Smart Doorbell application ignores a face it doesn't recognize.
2. True/False. Upon setting up a Python virtual environment, there are only two libraries available.
3. True/False. OpenCV is a library for computer vision.
4. What is the name of the Python library we used to recognize a face?
5. What are the names of the two custom classes used in the Camera script?

6.  True/False. We use the paho-mqtt library to publish MQTT messages.
7.  True/False. The Face class is instantiated with the location of a folder containing photos of faces.
8. True/False. When the Smart Doorbell application recognizes a face, it displays the name of that person on the screen.
9. True/False. We use the dashboard component, mqtt out, to subscribe to the external MQTT server.
10. True/False. Text-to-speech functionality exists in Node-RED.