Node.js, often referred to as simply "Node," is a powerful open-source runtime environment that allows developers to execute JavaScript code outside of web browsers. It is designed for building scalable and efficient network applications, particularly on the server side. Node.js leverages a non-blocking, event-driven architecture, making it ideal for handling asynchronous operations and real-time applications. With its vast ecosystem of packages and modules available through npm (Node Package Manager), Node.js has become a popular choice for web development, microservices, APIs, and more, enabling developers to create high-performance applications with ease.
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Practice Test
141. What does "REST" stand for in "RESTful APIs" in Node.js?
A. Robust Extensible Server Technologies
B. Representational State Transfer
C. Remote Endpoint Services for Transactions
D. Reactive Event-driven Stateful Technology
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Answer: Representational State Transfer
142. In a RESTful API, what is the primary architectural style used for designing resources and endpoints?
A. SOAP
B. GraphQL
C. RPC
D. Resource-Oriented
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Answer: Resource-Oriented
143. What HTTP methods are commonly used in RESTful APIs to perform CRUD (Create, Read, Update, Delete) operations on resources?
A. GET, POST, PUT, DELETE
B. CREATE, FETCH, MODIFY, DELETE
C. READ, WRITE, UPDATE, REMOVE
D. REQUEST, RECEIVE, UPDATE, REMOVE
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Answer: GET, POST, PUT, DELETE
144. In Node.js RESTful APIs, what is the purpose of the HTTP GET method?
A. To create a new resource
B. To read or retrieve the representation of a resource
C. To update an existing resource
D. To delete a resource
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Answer: To read or retrieve the representation of a resource
145. Which HTTP status code is typically returned in a Node.js RESTful API response to indicate a successful resource creation (POST request)?
A. 200 (OK)
B. 201 (Created)
C. 204 (No Content)
D. 400 (Bad Request)
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Answer: 201 (Created)
146. What is the purpose of query parameters in a RESTful API URL in Node.js?
A. To specify the HTTP method to be used
B. To define the resource's primary key
C. To provide additional data or filters for the request
D. To determine the response content type
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Answer: To provide additional data or filters for the request
147. What is the HTTP status code for a successful response to a GET request that did not return any data in a Node.js RESTful API?
A. 200 (OK)
B. 204 (No Content)
C. 404 (Not Found)
D. 500 (Internal Server Error)
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Answer: 204 (No Content)
148. In Node.js RESTful APIs, what is the purpose of the HTTP PUT method?
A. To create a new resource
B. To read or retrieve a resource
C. To update an existing resource
D. To delete a resource
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Answer: To update an existing resource
149. What is the primary advantage of using a RESTful API design in Node.js?
A. It uses a binary protocol for faster data transfer.
B. It allows for real-time communication between the server and client.
C. It provides a uniform and scalable approach to web service development, making it easy to consume data and interact with resources.
D. It requires minimal server configuration.
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Answer: It provides a uniform and scalable approach to web service development, making it easy to consume data and interact with resources.
150. In Node.js RESTful API development, what is the purpose of versioning the API?
A. To increase security
B. To create multiple API endpoints
C. To provide backward compatibility for clients as the API evolves
D. To optimize database queries
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Answer: To provide backward compatibility for clients as the API evolves
