DATABASE FUNDAMENTALS
BASICS OF BIG DATA
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Handwritten / Computer-typed
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Numerical format / Natural Language
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Clean / Dirty
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Subjective / Objective
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Detailed explanation-1: -Structured data is highly specific and is stored in a predefined format, where unstructured data is a conglomeration of many varied types of data that are stored in their native formats. This means that structured data takes advantage of schema-on-write and unstructured data employs schema-on-read.
Detailed explanation-2: -Structured data is usually easier to search and use, while unstructured data involves more complex search and analysis. Unstructured data requires processing to understand it, such as stacking before placing it in a relational database. Structured data is older, so there are more analytics tools available.
Detailed explanation-3: -Structured data consists of clearly defined data types with patterns that make them easily searchable, while unstructured data-“everything else”-is composed of data that is usually not as easily searchable, including formats like audio, video, and social media postings.
Detailed explanation-4: -Structured data is quantitative, while unstructured data is qualitative. Structured data is often stored in data warehouses, while unstructured data is stored in data lakes. Structured data is easy to search and analyze, while unstructured data requires more work to process and understand.