Q.1
Which of the following does JSON.stringify not serialize?
  • a) Undefined values
  • b) Functions within an object
  • c) Both Undefined values and Functions within an object
  • d) Functions outside the object
Q.2
What is the purpose of the property PerformanceTiming.fetchStart?
  • a) Browser ready to fetch input
  • b) Browser ready to fetch document
  • c) Browser ready to fetch summary
  • d) Browser ready to fetch output
Q.3
Which of the following property is associated with the Request event?
  • a) requestStart
  • b) requestEnd
  • c) both requestStart and requestEnd
  • d) requestchange
Q.4
Which of the following API can be used to get the timing without affecting the page loading process?
  • a) Navigation API
  • b) Timing API
  • c) Navigation Timing API
  • d) Navigate API
Q.5
How many properties are there in the interface PerformanceTiming?
  • a) 21
  • b) 22
  • c) 23
  • d) 24
Q.6
How many properties are there in window.performance object?
  • a) 1
  • b) 4
  • c) 2
  • d) 3
Q.7
What is the purpose of the navigation property in the window.performance object?
  • a) To which page the user navigated
  • b) How the user navigated
  • c) Information about the page
  • d) Information of the curser
Q.8
What is the purpose of the property PerformanceTiming.navigationStart?
  • a) Ready to end the navigation
  • b) Ready to jump the navigation
  • c) Ready for navigation
  • d) Ready to changing the navigation
Q.9
How many properties does a prototype object have?
  • a) 6
  • b) 7
  • c) 8
  • d) 9
Q.10
Which of the following does not serialize the undefined values or objects within an object?
  • a) JSON.string
  • b) JSON
  • c) JSON.stringify
  • d) JSON.change()
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