Understanding API and REST API Concepts

What does API stand for?

• Advanced Programming Integration

• Application Programming Interface

• Automated Programming Interface

• Application Programming Instruction

What is the primary purpose of an API?

• To store data in a database.

• The primary purpose of an API is to enable communication between different software systems.

• To create user interfaces for applications.

• To enhance the performance of a single software system.

Define REST in the context of APIs.

• REST requires the use of WebSockets for communication.

• REST is a programming language for building APIs.

• REST is a database management system for storing API data.

• REST is an architectural style for APIs that uses standard HTTP methods to interact with resources in a stateless manner.

What are the main principles of RESTful architecture?

• Stateful communication

• Single point of failure

• No caching allowed

• The main principles of RESTful architecture are statelessness, client-server architecture, cacheability, uniform interface, layered system, and code on demand.

What is the difference between REST and SOAP?

• REST is stateless and resource-oriented, while SOAP is protocol-based and relies on XML with built-in security.

• SOAP is faster than REST because it uses JSON for data exchange.

• REST requires built-in security features, while SOAP does not need any security measures.

• REST uses XML and is protocol-based, while SOAP is resource-oriented and stateless.

What HTTP methods are commonly used in REST APIs?

• FETCH, UPDATE, REMOVE, INSERT, COPY

• GET, POST, PUT, DELETE, PATCH

• CREATE, MODIFY, DESTROY, QUERY, LIST

• CONNECT, TRACE, OPTIONS, HEAD, PATCH

What is a resource in REST API terminology?

• A resource is a protocol for data transfer in REST APIs.

• A resource is an entity or object identified by a unique URI in a REST API.

• A resource is a collection of endpoints in a REST API.

• A resource is a type of HTTP method used in REST APIs.

Explain the concept of statelessness in REST.

• Statelessness in REST implies that requests can be processed without any data sent from the client.

• In REST, statelessness means that the server can store user data between requests.

• Statelessness in REST requires the server to maintain session information for each client.

• Statelessness in REST means that each request is independent and contains all necessary information, with no stored context on the server.

What is JSON and why is it commonly used in APIs?

• JSON is a lightweight data interchange format commonly used in APIs for its simplicity and ease of use.

• JSON is a markup language similar to HTML.

• JSON is a database management system for storing data.

• JSON is a programming language used for web development.

What is the role of an endpoint in an API?

• An endpoint is a type of database.

• An endpoint serves as a point of interaction for clients to access specific resources or functionalities of an API.

• An endpoint is a programming language used in APIs.

• An endpoint is used for data storage only.