a$)$ The features are described here.

b$)$ The number of attacks and their sub$-$categories is described here.

c$)$ In this coursework, we use the total number of $10-$million records that was stored in the CSV file $($download$).$ The total size is about $600$MB$,$ which is big enough to employ big data methodologies for analytics. As a big data specialist, firstly, we would like to read and understand its features, then apply modeling techniques. If you want to see a few records of this dataset, you can import it into Hadoop HDFS$,$ then make a Hive query for printing the first $5-10$ records for your understanding.

$(2)$ Big Data Query & Analysis by Apache Hive $[30$ marks$]$

This task is using Apache Hive for converting big raw data into useful information for the end users. To do so$,$ firstly understand the dataset carefully. Then, make at least $4$ Hive queries $($refer to the marking scheme$).$ Apply appropriate visualization tools to present your findings numerically and graphically. Interpret shortly your findings.