Quiz 5: Fundamental of Data Visualization - Application to Real-World Scenarios 1. You have a large dataset of a telecom company's customer churn data in Looker Data Studio. Which visualization would be most suitable to display the distribution of churn over time? A. Scatter plot B. Line graph C. Pie chart D. Bar chart 2. Looker Data Studio allows you to connect directly to various databases. In the context of data privacy, what's the benefit of this capability? A. Reduces data redundancy B. Minimizes the risk of data breaches C. Improves data loading speed D. Simplifies data transformation 3. You've created a visualization showing the correlation between a customer's age and their total purchases. The correlation seems weak. How could this information be useful? A. It suggests that customer age is not a significant factor in total purchases. B. It indicates that older customers make more purchases. C. It shows that the visualization is incorrect. D. It means that there's a strong correlation between age and purchases. 4. When preparing to present a series of visualizations to stakeholders, what is the best practice for ordering your presentation? A. Show the least important visualization first to build suspense. B. Arrange the visualizations randomly to keep the presentation dynamic. C. Present the visualizations in the order in which they were created. D. Start with the big picture and progressively drill down into the specifics. 5. In Looker Data Studio, you notice an outlier in your data visualization. What is the appropriate next step? A. Ignore the outlier as it doesn't fit the pattern. B. Investigate the outlier to understand its cause. C. Remove the outlier from the dataset. D. Change the visualization type to hide the outlier. Quiz 7 : Fundamental of Data Visualization – Connecting Database to Looker Data Studio 6. What is the main reason for connecting Looker Data Studio to a SQL database? A. To transfer the database to another server B. To visualize and analyze the anta in the database C. To convert the SQL database to a NoSQL database D. To install updates for the SQL database 7. In the process of connecting Looker Data Studio to a SQL database, which of the following information is NOT required? A. To install updates for the SQL database B. Username C. Password D. The number of tables in the database 8. When connecting Looker Data Studio to a SQL database, why is the time zone setting important? A. It helps to match the time zone of the data with the user's local time zone B. It changes the locker interface to the local language C. It's not important, it's on optional setting D. It helps Looker Data Studio to adjust the database's size 9. Besides host, port, database name, username, and password, what other setting might be required when connecting Looker Data Studio to a SQL database? A. The number of rows in the database B. The encoding setting C. The color theme of the Looker interface D. The size of the database in GB 10. How can you ensure the security of your database when providing credentials in Looker Data Studio? A. By not saving the credentials and inputting them each time B. By using a secure and encrypted connection C. By using a simple password for pass of remembrance D. By sharing the credentials only with the team