4 Architectures and Design of Databases. Big Data Technologies

Be prepared to get a business use case by a company to test your capability to design a suitable data warehouse. In order to successfully respond to such a challenge, try to find real-life examples on the Internet, comments from the creators of online stores, and the experiences and guidelines they shared for designing such a system. Finally, try making a small test version of an online store yourself, such as a board game store, for example. If nothing else, try to graphically show the whole process of developing such a system and what stages it should go through (from data collection to the application interface). When it comes to working with databases, the following Figure shows the fundamental processes involved and some of the most popular frameworks used for their realization.

Don't be discouraged by the quantity of these tools! Of course, someone who is a beginner or even proficient in Data Engineering is not expected to know all the tools at once! But try to recognize all the involving elements of one data engineering path and build a proper knowledge foundation. It will definitely send a signal that you are familiar with all essential concepts from the data engineering domain of expertise. One another plus for you!