API Fundamentals Course
API Fundamentals
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Beginner

Beginner Interview Questions

Definition

Common questions asked in junior interviews to verify a foundational understanding of how the web works.

Explain Like I'm New

Interviewers want to make sure you know what HTTP is, what a Status Code is, and how a basic GET request works.

Real World Example

Being asked: 'Explain what happens when you type google.com into your browser and press Enter.'

Common Use Cases

  • •Junior Developer Interviews

Terminal Output

bash / terminal
/* Common Beginner Question: "Explain the categories of HTTP Status Codes." Answer: 200s: Success. The request worked. 300s: Redirection. The resource moved. 400s: Client Error. The frontend sent bad data or lacks permission. 500s: Server Error. The backend code crashed. */

Interview Questions

basic

  • What is the difference between a GET and a POST request?

intermediate

  • What is JSON, and why do we use it instead of XML?

Flash Cards

Question

GET vs POST?

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Answer

GET retrieves data and appends parameters to the URL. POST sends data to create something new, hiding the data safely inside the Request Body.

Question

What is JSON?

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Answer

JavaScript Object Notation. It is a lightweight text format used to send data over the internet. It is preferred over XML because it is easier to read, much smaller in file size, and parses natively into JavaScript objects.