REST API Calls: Characteristics and Features

Characteristics of REST API Calls

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Question

What are two characteristics of REST API calls? (Choose two.)

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Explanations

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A. B. C. D. E.

CD.

https://www.cisco.com/c/en/us/td/docs/wireless/mse/8-0/MSE_REST_API/Guide/Cisco_MSE_REST_API_Guide/REST_Introduction.pdf

Sure, I'd be happy to provide a detailed explanation of REST API calls and their characteristics.

REST (Representational State Transfer) API is a web-based architectural style used for creating web services that are lightweight, scalable, and platform-independent. RESTful APIs enable communication between different systems using the HTTP protocol.

Here are the characteristics of REST API calls:

  1. Stateless: RESTful APIs are designed to be stateless, meaning that each request from a client to a server contains all the information necessary for the server to understand and process the request. The server does not store any client context between requests. This allows the server to be more scalable and resilient because it can handle multiple requests simultaneously without worrying about the state of any individual client.

  2. Implemented over HTTP: RESTful APIs are implemented over HTTP, which is a well-established and widely used protocol. HTTP provides a uniform interface for accessing and manipulating resources over the web, making it easy to build RESTful APIs that can be consumed by a variety of clients.

  3. Unencrypted: By default, REST API calls are unencrypted, meaning that the data transmitted between the client and server is not secured. However, it is possible to encrypt REST API calls using HTTPS, which provides an additional layer of security.

  4. Non-cacheable: REST API calls are typically non-cacheable, meaning that the response to a request should not be stored by the client or any intermediary caches. This is because the state of a resource can change between requests, and caching the response could lead to stale data being returned to the client.

  5. Parameters passed in the headers: In REST API calls, parameters are typically passed in the headers of the HTTP request. This allows for a flexible and extensible API design, where additional parameters can be added without changing the API's resource URIs.

Based on the above, the correct answers to the question are C (stateless) and D (implemented over HTTP).

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