Let's see whether you can answer the following questions correctly:

1. Which of the following Python modules is the Paho Python Client?
   
   1. paho-mqtt
   2. paho-client-pip
   3. paho-python-client
2. To establish a connection with an MQTT server that uses TLS, which method do you have to call for the paho.mqtt.client.Client instance before calling connect?
   1. connect_with_tls
   2. tls_set
   3. configure_tls

3. After the paho.mqtt.client.Client instance establishes a connection with the MQTT server, the callback assigned to which of the following attributes will be called?
   1. on_connection
   2. on_connect
   3. connect_callback
4. After the paho.mqtt.client.Client instance receives a message from one of the topic filters to which it has subscribed, the callback assigned to which of the following attributes will be called?
   1. on_message_arrived
   2. on_message
   3. message_arrived_callback
5. Which of the following methods of a paho.mqtt.client.Client instance calls the loop method for us in an infinite blocking loop?
   1. infinite_loop
   2. loop_while_true
   3. loop_forever

The right answers are included in the Appendix, Solutions.