Big Data Questions with CORRECT Answers

Big Data (12) Questions with CORRECT Answers


Question:
Structured data is highly organized and easily searchable due to its fixed format.
It resides in relational databases where each record has a predefined schema, such
as tables with rows and columns. This type of data is straightforward to enter,
store, query, and analyze. Define Unstructured Data
Answer:
Data that usually has no structured format or length. eg images, documents, videos

Question:
Define Semistructured Data
Answer:
Data that has a selfdefined schema and no specific length. The data is usually
structured in hierarches using tags. eg. json, xml, RDF

Question:
The 5vs of Big Data
Answer:
Volume, Variety, Velocity, Veracity, Value

Question:
Define Volume
Answer:
The amount of data that exists. The number of bytes associated with the data. In
the case of bigdata it is ALOT.

Question:
Define Velocity
Answer:
The speed at which big data is consumed and created. In this case rapidly.

, Question:
Define Veracity
Answer:
The accuracy, reliability and fidelity of the data. It refers to the level of
trust we have in big data which as it grows decreases.

Question:
Define Value
Answer:
The importance of collected data towards decision making.

Question:
Define Data Analytics
Answer:
The scientific process of transforming data into meaningful insights that inform
decision making.

Question:
Define Data Science
Answer:
a set of fundamental principles that guide the extraction of information/knowledge
from data. e.g. machine learning, artificial intelligence, multivariate
statistics.

Question:
Define Data Mining
Answer:
The computational process of discovering patterns and trends in data. e.g. cluster
analysis, anomaly detections, associations.

Question:
Computing Clusters
Answer:
A large collection of commodity hardware connected by ethernet cables or
inexpensive switches.