Question 41 : 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. Ready to changing the navigation
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Question 42 : What should be the type of script_url?
1. Object
2. String
3. Array
4. Any of the mentioned
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Question 43 : Which of the following is a read-only property?
1. PerformanceTiming.navigationStart
2. PerformanceTiming.fetchStart
3. PerformanceTiming.navigationStart & PerformanceTiming.fetchStart
4. None of the mentioned
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Question 44 : What is the initial step to set up a CSS Lazy Loading?
1. Fetching data
2. Loading the script
3. Loading the page
4. Adding the event listener
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Question 45 : Which of the following runs the JavaScript code?
1. Just In Time compiler
2. JavaScript Interpreter
3. Both Just In Time compiler and JavaScript Interpreter
4. Javascript compiler
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Question 46 : The object whose properties are inherited by all instances of the class, and properties whose values are functions behaving like instance methods of the class, is _____________
1. Instance object
2. Constructor object
3. Destructor object
4. Prototype object
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Question 47 : How to get a particular value using the tagged name?
1. getElementbyID()
2. getElementsbyName()
3. getElementsbyTagName()
4. getTagName()
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Question 48 : Which is the next step after retrieving the content in chunks?
1. Paint DOM elements
2. Parse Content
3. Build DOM nodes in render tree
4. Layout positioning of DOM elements
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Question 49 : What would happen if there were no script tags?
1. Build DOM nodes in render tree
2. Layout positioning of DOM elements
3. Paint DOM elements
4. Execute script
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Question 50 : What is the function of the memory object?
1. Gets unused memory details
2. Shows optimization
3. Gets memory usage
4. Memory optimization
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