Question 51 : The let keyword can be used ___________
1. in a for or for/in loop, as a substitute for var
2. as a block statement, to define new variables
3. to define variables that are scoped to a single expression
4. all of the mentioned
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Question 52 : What is the purpose of the advanced mode in the Closure compiler?
1. Removing the variables and other parameters
2. Renaming the variables and other parameters
3. Slight alteration to improve the runtime performance
4. Calls the function
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Question 53 : What does the handshake pass between the browser and the remote server?
1. Synchronize
2. Accept
3. Reject
4. Decline
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Question 54 : What is the purpose of the Video tab?
1. To take video of the page
2. To capture screenshots of the test only
3. To take video of the test
4. To capture screenshots of the page
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Question 55 : Which of the following methods adds an arc to the current subpath?
1. bezierCurveTo()
2. arcTo()
3. arc()
4. Curve()
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Question 56 : Which of the following is not a feature of the User Interface?
1. Skinnable Interface
2. Resizable Side Panel
3. Fixed Side Panel
4. Menu options
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Question 57 : In how many modes can the Closure compiler be run?
1. 2
2. 3
3. 4
4. 5
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Question 58 : How many rules are there in the YSlow version 2.0?
1. 23
2. 21
3. 27
4. 33
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Question 59 : Initially, YSlow was an extension of which browser?
1. Chrome
2. Firefox
3. IE
4. Opera
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Question 60 : What does the JS File return?
1. File I/O
2. Minify JavaScript
3. HTTP Request
4. Gzip encoded
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