Q$6$: Consider a MQTT network scenario in which there are few

clients such as car, temperature sensor$,$ Moisture sensor$,$ Mobile, T ablet, computer, backend

database along with a MQTT broker. The car publishes its speed, temperature and moisture

sensor also publish their data on broker. The mobile and the tablet subscribes car's speed and

temperature readings. The computer subscribes temperature and moisture readings. All the

published topics a e stored in the backed database. Answer the following

a$)$ Can a mobile act as publisher? Identify the number of publishers and subscribers.

b$)$ It is possible to add any other device in this model?

c$)$ Write the possible topics for car and temperature sensor$.$