introduction to data analytics coursera quiz answers week 2

Practice Quiz

1. What data type is typically found in databases and spreadsheets?

  • Structured data
  • Social media content
  • Unstructured data
  • Semi-structured data

2. Which of these data sources is an example of semi-structured data?

  • Documents 
  • Social media feeds
  • Emails
  • Network and web logs

3. Which one of the provided file formats is commonly used by APIs and Web Services to return data?

  • JSON 
  • Delimited file 
  • XLS
  • XML

4. What is one example of the relational databases discussed in the video?

  • Flat files
  • SQL Server 
  • Spreadsheet 
  • XML

5. Which of the following languages is one of the most popular querying languages in use today?

  • Java
  • SQL
  • R
  • Python

Graded Quiz

6. In the data analyst’s ecosystem, languages are classified by type. What are shell and scripting languages most commonly used for?

  • Manipulating data
  • Building apps
  • Querying data 
  • Automating repetitive operational tasks

7. Which of the following is an example of unstructured data?

  • Spreadsheets
  • Zipped files 
  • XML
  • Video and audio files

8. Which one of these file formats is independent of software, hardware, and operating systems, and can be viewed the same way on any device?

  • Delimited text file
  • XML
  • XLSX
  • PDF

Shuffle Q/A 1

9. Which data source can return data in plain text, XML, HTML, or JSON among others?

  • API
  • XML 
  • Delimited text file 
  • PDF 

10. According to the video “Languages for Data Professionals,” which of the programming languages supports multiple programming paradigms, such as object-oriented, imperative, functional, and procedural, making it suitable for a wide variety of use cases?

  • Unix/Linux Shell
  • Python
  • PowerShell 
  • Java

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