POC POC Web Development & APIs 2

Question 1

What is JSON and why is it preferred for web API data exchange?

Accepted Answer

A lightweight, human-readable text format easy to parse in any language

Answer

JSON (JavaScript Object Notation) is a lightweight, human-readable data interchange format supported natively in virtually every programming language.

Question 2

Which HTTP method is used to retrieve data from a server without modifying state?

Accepted Answer

GET

Answer

The GET method requests a representation of the specified resource and must not have side effects on server state.

Question 3

In Python's `requests` library, how do you pass query string parameters in a GET request?

Accepted Answer

Using the `params` keyword argument with a dictionary

Answer

The `params` keyword in `requests.get()` accepts a dict that gets URL-encoded and appended automatically as the query string.

Question 4

What does Flask's `jsonify()` function do?

Accepted Answer

Converts Python data to a JSON HTTP Response with correct Content-Type

Answer

Flask's `jsonify()` serializes Python data to JSON and returns a Response with `Content-Type: application/json` automatically set.

Question 5

What HTTP status code is returned when a requested resource cannot be found?

Accepted Answer

404

Answer

HTTP 404 (Not Found) indicates the server could not locate the requested resource at the given URL.

(POC) Python Online Certification Practice Test

(POC) Python Online Certification Practice Test

POC POC Web Development & APIs 2