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Why does Node not block while waiting for operations to complete?

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Why does Node not block while waiting for operations to complete? (a) Static (b) Asynchronous (c) Synchronous (d) Recursive This question was addressed to me in an international level competition. The query is from Asynchronous I/O with Rhino in section Server-Side and Client-Side Scripting of JavaScript Select the correct answer from above options JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

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Right choice is (b) Asynchronous Easy explanation: Node executes the function the in one go without any waiting or blocking. Because the Node’s functions and methods are asynchronous, they do not block while waiting for operations to complete.

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