Which of the following is true with respect to Node.

A. Every API of Node js are asynchronous.

B. Node being a single thread, and uses async function calls to maintain the concurrency.

C. Node thread keeps an event loop and whenever any task get completed, it fires the corresponding event which signals the event listener function to get executed.

D. All of the above.

View Answer

Correct Answer :
All of the above.

Explanation :
No Explanation available for this question

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Which of following are valid form of route path?
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Is the below code valid?

var cb0 = function (req, res, next) {
  console.log('CB0')
  next()
}

var cb1 = function (req, res, next) {
  console.log('CB1')
  next()
}

var cb2 = function (req, res) {
  res.send('Hello from C!')
}

app.get('/example/c', [cb0, cb1, cb2])

Is the code below valid?

var cb0 = function (req, res, next) {
  console.log('CB0')
  next()
}

var cb1 = function (req, res, next) {
  console.log('CB1')
  next()
}

app.get('/example/d', [cb0, cb1], function (req, res, next) {
  console.log('the response will be sent by the next function ...')
  next()
}, function (req, res) {
  res.send('Hello from D!')
})

A to Z Exams

Which of the following is true with respect to Node.

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