Data Mining and Knowledge Discovery Quiz

What is the topmost layer in the data pyramid?

• Data

• Information

• Wisdom

• Knowledge

Which of the following is a key step in the Knowledge Discovery Process (KDD)?

• Data Formatting

• Data Selection

• Data Scraping

• Data Backup

Which of the following is an example of unstructured data?

• SQL Database

• Excel Sheets

• Text Data

• Data Matrices

Semi-structured data is best described as:

• Fully tabular data

• Data with no defined model

• Data without labels

• Data that has some structure but is not fully tabular

What does the term "Data Mining" refer to?

• Scraping text from websites

• Extracting knowledge from large datasets

• Backing up data

• Collecting raw data

Which of the following is an example of data mining?

• Text scraping

• Data downloading

• Google Flu Trends

• Data backup

What kind of data does "Cluster Analysis" typically deal with?

• Predefined categories

• Labeled data

• Unlabeled data

• Sequential data

Which of the following is NOT a common application of data mining?

• Fraud detection

• Web page ranking

• Content creation

• Targeted marketing

What is the purpose of Outlier Analysis in data mining?

• To identify common data points

• To find patterns in normal data

• To identify data that does not conform to the general pattern

• To evaluate data quality

What kind of data mining is used for predictive analysis?

• Clustering

• Classification

• Regression

• Association