LinkedIn Node JS Assessment Answers
LinkedIn Node JS Assessment Questions and Answers
- the call stack
- the event loop
- the poll phase
- the events queue
- webpack
- crypto
- request
- chalk
- allocUnsafe
- contact
- from
- alloc
- ftp
- events
- dgram
- http2
- read
- readFile
- createReadStream
- readFileSync
- lookup
- resolve
- resolve4
- reverse
- util.types.isDate(value)
- assert.isDate(value)
- console.isDate(value)
- util.date(value)
- no, no modules are supporting it yet
- yes, with the HTTPS or http2 modules
- yes, through the path module
- yes, with the HTTP module
- A-API
- Z-API
- N-API
- X-API
- –dev-tools
- –inspect
- –chrome
- –debug
- node -p “process.cpus”
- node -p “util.cpus().size”
- node -p “process.os.cpus”
- node -p “os.cpus().length”
- exit
- test
- time
- global.cache
- module.cache
- process.cache
- require.cache
- node index.js –trace-warnings
- node –no-warnings
- node -trace-warnings
- node index.js –no-warnings
- new Promise(child_process.exec())
- util.promisify(child_process.exec())
- util.promisify(child_process.exec)
- new Promise(child_process.exec)
- .brake
- .history
- .editor
- .save
- The forked process shares the event loop with the parent process
- A new VM instance is created and the two VM instances will be shared between the forked process and the parent process.
- The forked process will have its own VM instance.
- The forked process shares the same VM thread with the parent process.
- EventEmitter.emit(‘change’);
- EventEmitter.new().emit(‘change’);
- (new EventEmitter()).emit(‘change’);
- new EventEmitter(‘change’);
- process.uptime
- process.stdout
- process
- Buffer
- __pathname
- __location
- __flder
- __filename
- spawn(“ps -ef”)
- exec(“ps -ef”)
- exec(“ps”, “-ef”)
- fork(“ps -ef”)
- stack
- trace
- debug
- the libuv library
- the c-ares library
- the VM (like VS or Chakra)
- the reply module
- server running at http://localhost:3000/
- server running at port 3000
- server running at http://localhost:4000/
- server running at http://127.0.0.1:3000/
- to provide utilities to play with file and directory paths
- to provide utilities to add and remove files
- It is a retiring module.
- to provide utilities to test files
- server. start server. activate server. listen to the server. run
- creates a text file hello.txt and appends customized text
- creates an image file
- console logs system information
- creates a file named data and append numbers
- nodemon start
- start index.js
- node index.js
- node start
- to provide methods to work with requests and responses
- to provide methods to work with files
- to provide methods to work with databases
- to find new file systems
- It is the current unstable version and is to be avoided.
- It is the version that will be retired soon.
- It is the version with the latest features.
- It is the safest version for long-term support.
- process. stdinfo
- process. stdin
- process. stdout
- process. stderr
- ReferenceError: arguments are not defined
- an empty string
- undefined
- an object representing an array that has five elements
- start
- on
- once
- off
- process
- Buffer
- root
- require
- node index.js -x
- node -v
- node -h
- node index.js -h
- http.IncomingMessage
- http.ServerRequest
- http.ClientRequest
- http.ServerResponse
- exports, __filename, __dirname
- exports, process, require, module, __filename, __dirname
- exports, module, __filename, __dirname
- exports, require, module, __filename, __dirname
- V8
- c-ares
- libuv
- events
- a C++ file that can have a .node extension and that Node will be able to execute directly.
- a C++ Addon file that is built with node-gyp
- a JSON file that can have a .node extension as well as the .json extension
- a JavaScript file that can have a .node extension as well as the .js extension
- only objects.
- only functions
- only variables and arrays
- functions, objects, arrays, or anything you assign to the module
- os
- util
- cluster
- net
- SSL
- hash
- crypto
- TOOLS
- const { readFile } = require(fs).promises
- const { readFile } = require(fs)
- const { readFilePromises: readFile } = require(fs)
- const { readFile } = require(promises)
- Changes are not backward compatible.
- Changes might not be backward compatible and might break existing code.
- Changes are just bug fixes and no new features were added.
- Changes will add new functionality but will not break any existing code.
- run, examine, put, loop
- read, eval, print, loop
- run, edit, print, loop
- read, extend, print, loop
- .gyprc
- binding.gyp
- gyp.json
- package.gyp
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