Reading Files MCQ | Node.js File Reading Multiple Choice Questions

Direction: Choose the correct option

Which method asynchronously reads the entire contents of a file?

A. fs.open()

B. fs.readSync()

C. fs.read()

D. fs.readFile()

Direction: Choose the correct option

If no encoding is specified in `fs.readFile()`, what is returned?

A. An array

B. An error

C. A string

D. A buffer

Direction: Choose the correct option

How do you read a file line by line in Node.js?

A. Using the `readline` module

B. Using `fs.readFile()` and splitting by newline

C. All of the above are possible

D. Using `fs.createReadStream()` with `readline`

Direction: Choose the correct option

What happens if the file does not exist in `fs.readFile()`?

A. The program crashes

B. The callback receives an error object

C. `null` is returned

D. An empty file is created

Direction: Choose the correct option

Which flag would you use with `fs.open()` to read a file?

A. 'x'

B. 'w'

C. 'a'

D. 'r'

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