Server-Side JavaScript MCQ

Test your knowledge with important Server-Side JavaScript MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30+ more Server-Side JavaScript MCQs on Bissoy. Bissoy App

• What will be the return value of the write() method when the Node cannot write the data immediately and has to buffer it internally?
  ক

  0

  খ

  1

  গ

  True

  ঘ

  False
• When the “end” event fires on EOF when no more data will arrive, which function is called?
  ক

  s.on(“data”,f);

  খ

  s.on(“end”,f);

  গ

  s.on(“error”,f);

  ঘ

  s.on(“default”,f);
• What is the method used to pause “data” events?
  ক

  s.pause();

  খ

  s.stop();

  গ

  s.halt();

  ঘ

  s.wait();
• Which among the following POSIX signals generate events?
  ক

  SIGDOWN

  খ

  SIGFLOAT

  গ

  SIGINT

  ঘ

  SIGSHORT
• When do uncaught exceptions generate events?
  ক

  When handlers are registered

  খ

  When handlers are deregistered

  গ

  When handler functions are called

  ঘ

  When handlers do not have a matching catch clause
• Which of the following is an event emitter?
  ক

  once

  খ

  process

  গ

  listeners

  ঘ

  on
• Which function is a synonym for on()?
  ক

  addListener()

  খ

  listeners()

  গ

  once()

  ঘ

  add()
• What is the function used to remove all handlers for name events?
  ক

  deleteAllListeners(name)

  খ

  deleteListener(name,f)

  গ

  removeListener(name,f)

  ঘ

  removeAllListeners(name)
• What is the function used to deregister event handler ‘f’?
  ক

  deleteAllListeners(name)

  খ

  deleteListener(name,f)

  গ

  removeListener(name,f)

  ঘ

  removeAllListeners(name)
• What are the events generated by the Node objects called?
  ক

  generators

  খ

  emitters

  গ

  dispatchers

  ঘ

  highevents