Integrating the Performance Object with perfLogger MCQ

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• Which of the following API can be used to get the timing without affecting the page loading process?
  ক

  Navigation API

  খ

  Timing API

  গ

  Navigation Timing API

  ঘ

  Navigate API
• Which of the following property is associated with the Request event?
  ক

  requestStart

  খ

  requestEnd

  গ

  both requestStart and requestEnd

  ঘ

  requestchange
• What is the purpose of the property PerformanceTiming.fetchStart?
  ক

  Browser ready to fetch input

  খ

  Browser ready to fetch document

  গ

  Browser ready to fetch summary

  ঘ

  Browser ready to fetch output
• Which of the following does JSON.stringify not serialize?
  ক

  Undefined values

  খ

  Functions within an object

  গ

  Both Undefined values and Functions within an object

  ঘ

  Functions outside the object
• What is the purpose of the property PerformanceTiming.navigationStart?
  ক

  Ready to end the navigation

  খ

  Ready to jump the navigation

  গ

  Ready for navigation

  ঘ

  Ready to changing the navigation
• What is the purpose of the navigation property in the window.performance object?
  ক

  To which page the user navigated

  খ

  How the user navigated

  গ

  Information about the page

  ঘ

  Information of the curser
• How many properties are there in window.performance object?
  ক

  1

  খ

  4

  গ

  2

  ঘ

  3
• How many properties are there in the interface PerformanceTiming?
  ক

  21

  খ

  22

  গ

  23

  ঘ

  24
• Which of the following does not serialize the undefined values or objects within an object?
  ক

  JSON.string

  খ

  JSON

  গ

  JSON.stringify

  ঘ

  JSON.change()
• How many properties does a prototype object have?
  ক

  6

  খ

  7

  গ

  8

  ঘ

  9