1. What are the differences between a component, a module, and a service?
2. Explain the asset cycle with accounting entries and the purpose of the depreciation key and area.
3. Explain the Procure-to-Pay (P2P) cycle and Order-to-Cash (O2C) cycle with relevant journal entries.
4. Write code to find the number of vowels in a given string.
5. What Python libraries are commonly used in data engineering?