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MCQs

Total Questions : 86 | Page 4 of 9 pages
Question 31. How many properties are there in window.performance object?
  1.    1
  2.    4
  3.    2
  4.    3
 Discuss Question
Answer: Option C. -> 2
Question 32. What is the purpose of the navigation property in the window.performance object?
  1.    To which page the user navigated
  2.    How the user navigated
  3.    All of the mentioned
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> How the user navigated
Question 33. What is the purpose of the property PerformanceTiming.navigationStart?
  1.    Ready to end the navigation
  2.    Ready to jump the navigation
  3.    Ready for navigation
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Ready for navigation
Question 34. Which of the following does JSON.stringify not serialize?
  1.    Undefined values
  2.    Functions within an object
  3.    Both Undefined values and Functions within an object
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Both Undefined values and Functions within an object
Question 35. Which of the following property is associated with the Request event?
  1.    requestStart
  2.    requestEnd
  3.    both requestStart and requestEnd
  4.    none of the mentioned
 Discuss Question
Answer: Option A. -> requestStart
Question 36. What is the purpose of the property PerformanceTiming.fetchStart?
  1.    Browser ready to fetch input
  2.    Browser ready to fetch document
  3.    Browser ready to fetch summary
  4.    All of the mentioned
 Discuss Question
Answer: Option B. -> Browser ready to fetch document
Question 37. Which of the following API can be used to get the timing without affecting the page loading process?
  1.    Navigation API
  2.    Timing API
  3.    Navigation Timing API
  4.    None of the mentioned
 Discuss Question
Answer: Option C. -> Navigation Timing API
Question 38. How many read-only attributes are present in the navigator object?
  1.    1
  2.    2
  3.    3
  4.    4
 Discuss Question
Answer: Option B. -> 2
Question 39. Why are HTTP redirects significant?
  1.    TCP connection available
  2.    Complete roundtrip absent
  3.    Complete roundtrip present
  4.    None of the mentioned
 Discuss Question
Answer: Option B. -> Complete roundtrip absent
Question 40. Where does the DNS reply go to in a single HTTP redirect?
  1.    Browser
  2.    Client
  3.    Server
  4.    DNS Server
 Discuss Question
Answer: Option A. -> Browser

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