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Graded Quiz: Data Collection:IBM Data Analyst Capstone Project (IBM Data Analyst Professional Certificate) Answer 2025

1. Question 1

Which Python module helps you easily access an API?

  • ❌ Matplotlib

  • ❌ NumPy

  • ❌ Pandas

  • Requests

Explanation:
requests is the standard module for making API calls.


2. Question 2

Which URL format retrieves a JSON representation?

  • ❌ .xml

  • ❌ .csv

  • /positions.json

  • ❌ .html


3. Question 3

After downloading the Jobs_API file, what should you do to run it in Watson Studio?

  • Upload the file to IBM Watson Studio

  • ❌ Open in text editor

  • ❌ Compile it

  • ❌ Convert to CSV


4. Question 4

Which module downloads a web page in Python?

  • ❌ bs4

  • ❌ json

  • requests

  • ❌ urllib (also possible, but requests is correct & preferred in this lab)


5. Question 5

Function in csv module to write a row:

  • ❌ writeline

  • ❌ writecsv

  • ❌ write

  • writerow


6. Question 6

HTML tag for a table row:

  • <table>

  • <tr>

  • <row>

  • <td> (table cell)


7. Question 7

Library required to load & manipulate the dataset:

  • ❌ matplotlib

  • ❌ numpy

  • ❌ seaborn

  • pandas


8. Question 8

How many rows are in the dataset?

  • ❌ 54,728

  • ❌ 115

  • 65,437

  • ❌ 12,345

(This matches the dataset used in the lab.)


9. Question 9

Approximate mean age of participants:

  • 29.6

  • ❌ 32.7

  • ❌ 25.4

  • ❌ 39.5


10. Question 10

How many unique countries appear in the dataset?

  • ❌ 175

  • ❌ 200

  • ❌ 120

  • 185


🧾 Summary Table

Q Correct Answer Concept
1 Requests API access
2 /positions.json JSON format
3 Upload to Watson Studio Running file
4 requests Web page download
5 writerow Write CSV
6 <tr> HTML table row
7 pandas Load dataset
8 65,437 rows Dataset size
9 29.6 Mean age
10 185 Unique countries