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2021 Jun pass for sure 70-480:
Q11. You are creating a custom function. You pass an object named testObj to the function as a parameter. You do not use inheritance through the functions.
The function must establish whether testObj inherits from another object named parentObj.
You need to ensure that the function performs as required.
Which method or operator should you add to the function?
A. parentObj.instanceof(testObj)
B. testObj.isPrototypeOf(parentObj)
C. testObj.instanceof(parentObj)
D. parentObj.isPrototypeOf(testObj)
Answer: B
Q12. You are developing an HTML5 web application and are styling text.
You need to use the text-transform CSS property.
Which values are valid for the text-transform property?
A. hidden
B. blink
C. capitalize
D. line-through
Answer: C
Q13. You are developing an application that uses a third-party JavaScript library named doWork().
The library occasionally throws an "object is null or undefined" error with an error code of -2146823281.
The application must:
. Extract and handle the exceptions thrown by doWork()
. Continue normal program execution if other exceptions occur You need to implement the requirements.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Q14. You are developing a web application that can function when users are not connected to the Internet.
You need to check the Internet connectivity status of a user's browser.
Which method should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q15. You are developing a JavaScript library.
You have the following requirements:
Custom exceptions must include an error message and custom error number. These exceptions must be thrown when data validation errors occur. Developers must call the library to easily catch the exception and identify the problem.
You develop the following code. (Line numbers are included for reference only.)
You need to complete the code to meet the requirements.
Which line of code should you insert at line 09?
A. throw new Validatior.Exception (123, "Day of week must be les3 than 7");
B. return new ValidationException(123, "Day of week must be less than 7");
C. throw ValidationException(123, "Day of week must be less than 7");
D. catch ValidationException(123, "Day of week: must be less than 7");
Answer: A
Most up-to-date second shot 70-480:
Q16. You are developing an application that analyzes population data for major cities in the United States. The application retrieves population statistics for a city by using a web service.
You need to request data from the web service by using jQuery.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: D
Q17. You are developing an HTML5 web application that provides a discussion forum for users. When a user registers to access the application, the user enters an email address.
Users can enter data that can result in cross-site scripting (XSS) attacks.
You need to ensure that email input is as secure as possible.
Which two techniques should you use? (Each correct answer presents a complete solution. Choose two.)
A. Remove all nonalphanumeric characters before submitting data.
B. Use the email tag in forms where the email address is entered.
C. Display all email addresses inside of an HTML5 ADDRESS element.
D. Use jQuery validation with a regular expression to ensure that email addresses are valid.
E. Ensure that all form data is encrypted when it is submitted.
Answer: BD
Q18. You are developing application web form by using HTML5 and JavaScript. You need to prevent users from submitting form data more than once. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A
Q19. You are creating a JavaScript function to display the current version of a web application
You declare a button as follows.
<input type="button" id="About" value="About" />
You need to create an event handler for the button by using an anonymous function.
Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: C
Q20. You are developing an HTML5 web application that displays stock information.
The application loads information from a web service by using AJAX.
The following code defines a Stock object and loads stock data.
You need to implement the loadStock function. Which code segment should you use?
A. Option A
B. Option B
C. Option C
D. Option D
Answer: A