1. Question 1

A web developer is troubleshooting an HTTP response with a status code of 404. What does this indicate?

• ❌ The server encountered an internal error while processing the request

• ❌ The client lacks proper authentication to access the resource

• ✅ The requested resource could not be found on the server

• ❌ The request was successful, and the resource was retrieved

Explanation:

404 = Not Found → The server couldn’t locate the requested URL/resource.

---

2. Question 2

Next step to extract all player names in h3 tags:

• ✅ Use soup.find_all(‘h3’) to create a list of all h3 elements

• ❌ Use soup.get_text()

• ❌ Use soup.navigate(‘h3’)

• ❌ Use soup.findAll(‘salary’)

Explanation:

find_all('h3') returns a list of all <h3> elements.

---

3. Question 3

Format conversion needed when using PyCoinGecko:

• ✅ Apply the json() method to the response object

• ❌ xml()

• ❌ csv()

• ❌ text

Explanation:

REST API responses are typically JSON → convert using .json().

---

4. Question 4

Data processing step before candlestick chart:

• ❌ Matplotlib date formatter

• ✅ Using pandas to_datetime to convert UNIX timestamps

• ❌ BeautifulSoup parser

• ❌ NumPy time function

Explanation:

UNIX timestamps must be converted into readable datetime using pd.to_datetime().

---

5. Question 5

HTML table hierarchy:

• ❌ td is parent of tr

• ❌ tr is parent of table

• ✅ table → tr → td (correct hierarchy)

• ❌ Not related

Explanation:

<table> contains <tr>, and each <tr> contains <td>.

---

6. Question 6

Structure of a query string:

• ❌ Exclamation mark + XML

• ✅ Begins with ? followed by key=value pairs separated by &

• ❌ Semicolon + JSON

• ❌ Hash symbol

Explanation:

Example:
?name=John&age=25

---

7. Question 7

Definition of an API:

• ❌ DBMS

• ❌ Security protocol

• ✅ A set of rules for software components to communicate

• ❌ Programming language

Explanation:

API defines how applications talk to each other.

---

8. Question 8

Difference between CSV, JSON, XML:

• ❌ CSV encrypted…

• ❌ OS-specific

• ✅ CSV = tabular, JSON = key-value, XML = hierarchical tags

• ❌ Numeric/text/binary restrictions

Explanation:

Correct standard definitions of each file type.

---

9. Question 9

Correct GET request with parameters:

• ❌ Using POST

• ❌ json= for GET

• ✅ r = requests.get(…, params=payload)

• ❌ data= used incorrectly

Explanation:

params attaches query parameters to a GET request.

---

10. Question 10

Find all table rows in HTML:

• ❌ soup.search

• ✅ soup.find_all(‘tr’)

• ❌ read_table

• ❌ extract

Explanation:

All table rows in HTML are <tr> elements.

---

🧾 Summary Table

---