REST API MCQ Questions Answers

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REST API multiple choice questions List

Rest API:

A Rest API is an application programming interface that allows clients to communicate with a server in a RESTful way. In contrast to SOAP-based web services, which use XML-based messages and require an extensive amount of hand-coding, Rest APIs use simple HTTP requests and responses. This makes them easier to develop and deploy.

What is Azure Rest API?

Azure Rest API is a web service that enables you to interact with Azure resources using HTTP and HTTPS. You can use this API to manage your subscription, resources in your subscription, and access data in Azure storage accounts.

What is representational state transfer (Rest)?

Representational state transfer (REST) is a style of software architecture that defines a set of constraints to be followed by designers and implementers of web services. REST-compliant web services are easy to use because they exploit the built-in features of browsers and networks, making them more reliable and scalable than alternatives.

RESTful web services:

RESTful web services or REST web services are web services that use the HTTP protocol to communicate with clients. A RESTful web service typically exposes an API that uses standard HTTP verbs such as GET, POST, PUT, and DELETE to manipulate resources on the server.

In computing, a RESTful web service is a web service that implements the Representational State Transfer (REST) architectural style. REST is a style of architecture for distributed systems such as the World Wide Web.

RESTful web services use HTTP requests to manipulate and query data resources on a server.

RESTful web services or Rest web services are popular because they are simple to use and understand. They can also be more efficient than alternatives such as SOAP-based web services since they use less bandwidth and fewer connections.

RESTful web services are often implemented using the popular Java servlet technology, although any programming language or platform can be used. The most popular RESTful web service frameworks are Jersey, Spring MVC, and Node.js.

Define key value pairs?

A key value pair (KVP) is a data structure that pairs a key with a value. The key is typically a string or an integer, while the value can be any type of data. Key value pairs are often used to store information in a database or cache.

An internal server error:

An internal server error is an unexpected error that occurs on a web server. This type of error can be caused by a variety of issues, such as software bugs or problems with the server's configuration. When an internal server error occurs, the webserver typically returns an HTTP 500 status code.

What is the HTTP method?

HTTP or HTTP method is the protocol for communication between a client and a server. When you make a request to a web page, your browser sends an HTTP request. The server responds with an HTTP response. HTTP is stateless, which means that each request is independent of any other requests.

What is an HTTP request message?

An HTTP request message is a request sent by a web browser to a web server in order to download a page or file. The request contains information about the page or file that is being requested, as well as information about the user's browser and computer.

The HTTP response:

The HTTP response is an HTTP message sent by the server in reply to a request made by the client. It is the message that the server sends back to the client to indicate success, failure, or other information about the request.

Cache Control Header:

Cache control header is an HTTP header that allows the sender to specify directives for caching. The header can be used to instruct caches not to store certain elements or to expire cached items after a certain time. Cache control headers are also used to prevent malicious users from caching sensitive information.

What is an HTTP status code?

An HTTP status code is a three-digit number that indicates the result of an HTTP request. The most common status codes are 200 (OK), 404 (Not Found), and 500 (Internal Server Error). Status codes can also indicate errors such as invalid user input, expired sessions, or exceeded rate limits. When a request results in an error, the server returns an HTTP status code in the 4xx or 5xx range. Client libraries and web frameworks often include helpers to make it easy to handle errors that occur during requests.

What is the HTTP protocol version?

HTTP protocol version 1.0 was released in 1991. HTTP/1.1, the most recent version, was released in January 1997. It is a minor revision of the original HTTP/1.0 specification, with a few added features and a more thorough explanation of the protocol's design. Support for HTTP/1.1 is now included in the most popular web browsers and servers.

HTTP methods:

HTTP methods are the actions that can be performed on a web resource, identified by a URL. Some of the HTTP methods which are in HTTP verb are given below:

  • GET

  • POST

  • PUT

  • DELETE etc.

What is the request URI component?

The request URI component is the part of the Uniform Resource Identifier (URI) that identifies the particular resource that is being requested. This can include information about the type of resource, its location on the server, and any parameters that need to be included in order to access it.

What do you know about a URI host?

A URI host is a resource that is identified by a Uniform Resource Identifier (URI). The hostname portion of the URI identifies the host, while the path and filename identify the specific resource on the host. In most cases, the host will be a web server, but it could also be an FTP server, mail server, or any other type of server.

What is a requested resource?

A requested resource is a resource that is requested by an API client. For example, when a user makes a request to the GitHub API, they are requesting a certain resource, such as a repository or user. In order to properly access and interact with this resource, the API client must include the correct authentication credentials.

What is the rest service endpoint?

A REST service endpoint is the address of a web resource that can be accessed using the HTTP protocol. Clients such as browsers and mobile apps can use this address to make requests and receive responses. The endpoint usually includes the path to the resource and the required HTTP method.

Rest Architecture:

REST stands for Representational State Transfer. REST architecture is a style of software architecture that defines how components communicate with each other. A RESTful web service communicates with clients using the HTTP protocol. Requests are made to resources, which are identified by Uniform Resource Identifiers (URIs). Responses include one or more representations of the requested resource.

What do you mean by an upstream server?

It is a remote server that your application relies on to send or receive data. When you make a request to an upstream server, your application is actually communicating with the remote server rather than your own server. This can be useful for distributing load among different servers or for caching data.

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