Module 5 Graded Quiz: APIs and Data Collection:Python for Data Science, AI & Development (Applied Data Science Specialization) Answers 2025

1. HTTP 404 status code

✅ The requested resource could not be found on the server
— 404 = Not Found.

❌ Internal error → That’s 500
❌ Lacks authentication → That’s 401
❌ Successful → That’s 200

2. Extract all h3 tags

✅ Use soup.find_all(‘h3’) to create a list of all h3 elements
— Correct method to extract multiple matching tags.

❌ get_text → Gets all text
❌ navigate → Not a valid BS method
❌ findAll(‘salary’) → Wrong tag

3. Convert API response to dictionary

✅ Apply the json() method to the response object
— Converts JSON API response into Python dict.

❌ xml → Wrong
❌ csv → Wrong
❌ text attribute → Gives raw text only

4. Prepare timestamps for candlestick chart

✅ Using pandas to_datetime to convert UNIX timestamps to readable dates
— Required to convert epoch time.

❌ matplotlib weekday — Unrelated
❌ BeautifulSoup — Not for timestamps
❌ NumPy moving averages — Not relevant

5. HTML table structure

✅ The <table> element is the parent of <tr> elements, which are parents of <td> elements.
— Correct DOM hierarchy.

❌ td parent of tr → Wrong
❌ tr parent of table → Wrong
❌ all siblings → Wrong

6. GET request query string

✅ It begins with a question mark followed by parameter-value pairs separated by ampersands.
— Correct structure: ?key=value&key2=value2

❌ ! → Wrong
❌ ; JSON → Wrong
❌ # → Fragment identifier

7. API definition

✅ A set of rules that allows two software components to communicate with each other
— Correct API meaning.

❌ DB system → Not API
❌ Security protocol → Not API
❌ Programming language → Wrong

8. CSV vs JSON vs XML

✅ CSV is tabular; JSON is key-value; XML uses hierarchical tags
— Correct characteristics.

❌ Encrypted/compressed — Wrong
❌ OS-specific — Wrong
❌ Only numeric/text/binary — Wrong

9. Correct GET request with parameters

✅ import requests; payload = {‘name’: ‘John’, ‘ID’: ‘123’}; r = requests.get(‘https://api.example.com/data‘, params=payload)
— Correct approach using GET + params.

❌ POST — Wrong method
❌ GET with JSON — Not typical
❌ GET with data={} — Wrong usage

10. Extract table rows with BeautifulSoup

✅ soup.find_all(‘tr’) to identify all table rows
— Correct method to extract all row elements.

❌ search(‘players’) → Invalid
❌ read_table() → Not a BS method
❌ extract(‘statistics’) → Wrong

🧾 Summary Table