Node.js Online Quiz
Following quiz provides Multiple Choice Questions (MCQs) related to Node.js Framework. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.
Q 1 - What is Node.JS?
B - Node.js is a JavaScript based framework/platform built on Google Chrome's JavaScript V8 Engine.
Answer : B
Explanation
Node.js is a JavaScript based framework/platform built on Google Chrome's JavaScript V8 Engine.
Q 2 - What is Callback?
A - Callback is an asynchronous equivalent for a function.
B - Callback is a technique in which a method call back the caller method.
Answer : A
Explanation
Callback is an asynchronous equivalent for a function.
Q 3 - Which of the following is true about readable stream?
A - Readable stream is used for read operation.
B - Output of readable stream can be input to a writable stream.
Answer : C
Explanation
Readable stream is used for read operation and its output can be input to a writable stream.
Q 4 - Which of the following is true about Piping streams?
A - Piping is a mechanism where we provide output of one stream as the input to another stream.
Answer : D
Explanation
Piping is a mechanism where we provide output of one stream as the input to another stream. It is normally used to get data from one stream and to pass output of that stream to another stream. There is no limit on piping operations.
Q 5 - Which method of fs module is used to read a directory?
A - fs.readDirectory(path[, mode], callback)
B - fs.read(path[, mode], callback)
Answer : C
Explanation
fs.readdir(path, callback)is the method which is used to read a directory.
Q 6 - Which of the following module is required for operating system specific operations?
Answer : A
Explanation
Node.js os module provides a few basic operating-system related utility functions.
Q 7 - Which of the following is the correct way to get a joint path?
A - path.join('/test', 'test1', '2slashes/1slash', 'tab', '..')
B - path.combine('/test', 'test1', '2slashes/1slash', 'tab', '..')
C - buffer.join('/test', 'test1', '2slashes/1slash', 'tab', '..')
Answer : A
Explanation
path.join([path1][, path2][, ...]) joins all arguments together and normalize the resulting path.
Q 8 - Which of the following module is required for exception handling in Node?
Answer : C
Explanation
Node.js domain module is used to intercept unhandled error. These unhandled error can be intercepted using internal binding or external binding. If errors are not handled at all then they will simply crash the Node application.
Q 9 - What is Express?
Answer : B
Explanation
Express is a minimal and flexible Node.js web application framework that provides a robust set of features to develop web and mobile applications.
Q 10 - Which of the following is true about RESTful webservices?
A - Webservices based on REST Architecture are known as RESTful web services.
B - Webservices uses HTTP methods to implement the concept of REST architecture.
Answer : C
Explanation
Webservices based on REST Architecture are known as RESTful web services. These webservices uses HTTP methods to implement the concept of REST architecture.
