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QA section

Here are a few questions to reflect upon:

What is a race condition? How can you avoid a race condition?
What are the benefits of using the queue data structure?
What are the most popular open source databases available in the market?
What are the most common modes of interprocess communication?
When would you use the asyncio module?
What are some of the advantages and disadvantages of using serial communication? What are some of its alternatives?
What are the JSON and XML file formats used for? What are their advantages and disadvantages when compared to using a database?

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