1D0-735 Online Practice Questions and Answers

Which of the following statements is an advantage of using JavaScript on the server-side?

A. Server-side validation conserves more bandwidth than client-side validation

B. Server-side JavaScript runs the script on the server, thus eliminating compatibility problems with client-side browsers

C. Server-side JavaScript requires lass processing power on the served level than client- side JavaScript

D. Server-side JavaScript results in a higher level of end-user satisfaction

Consider the following code:

Which of the following is true based on the above code?

A. The function sofaPic will be called upon when sofaPic image loads

B. The function sofaPic is called when the image fails to load

C. The function sofaPic is called when the mouse pointer moves off the image

D. The function sofaPic is called when the mouse pointer moves over the image

Which of the following is an advantage of using the Virtual DOM?

A. Rendering the virtual DOM is faster than rendering the regular browser DOM.

B. The virtual DOM updates each element when the layout of the DOM changes, meaning that the page always reflects the most current data from the server

C. The Virtual DOM is not just a view layer, but also makes changes directly to the Web page

D. You can learn virtual DOM concepts and React libraries quickly because the libraries are simple and concise

What is the output when you run the following script in the browser?

A. Elephant Zebra Lion Giraffe

B. Elephant Lion Giraffe

C. Zebra Elephant Lion Giraffe

D. Zebra.Elephant Giraffe

Geraldine is creating a custom object to store user account data on her Web site. She has written the following code it is not working properly. What change should she make to enable the script to run correctly?

A. She must remove the this keyword from the left side of the assignment variables

B. She must add the parameters username. password and email to the function definition

C. She must change the this keyword to the object keyword on the left side of the assignment variables

D. She must change the function keyword to the object keyword in the function definition

Considering the following code:

Var 1 ;

For (I = 1; I < 10; I ++)

What part of the code fragment initializes the counter variable?

A. i++

B. i < 10;

C. i = 1;

D. Var 1;

Consider the following code:

What text will display in the alert dialog box?

A. Ear J

B. Ar Jo

C. Ear Jo

D. Ar J

Jaime needs to write a script to remove all the non-digit characters from a phone number so that all that remains are the numbers She knows that she will need to use a regular expression to search for non-digit characters and can use a method to remove all the non- digit characters. Which code should she use?

A. Option A

B. Option B

C. Option C

D. Option D

Consider the following code:

The code displays a pop-up alert message if the username is less than 6 characters and submits the form. What change should be made to prevent the form from submitted if the username is less than 6 characters?

A. The function call on line 13 should be changed to validateForm();

B. Return false; should be added after the alert call on line 7

C. submit false; should be added after the alert call on line 7

D. The submit event handler on line 13 should be moved to line 16

Which of the following comparison statement will return true?

A. X=10; Y=11; y--; x==y

B. X=10; Y=11; Y++; x==y'

C. X=11; Y=10; y--; x==y;

D. X=11; Y=10; y-= 1; x==y

Which of the following is a true statement regarding the relationship between Promises and callback functions?

A. A Promise cannot be used in conjunction with a callback.

B. A Promise is used to monitor the value of a variable A callback retrieves the previous value of a variable.

C. A Promise is a returned object to which the developer can attach callbacks instead of passing callbacks to a function.

D. A Promise is an object a developer can use to pass callbacks to functions.

Zamar wants to add buttons to his Web page to allow users to navigate forward and backward through his Web site similar to the Forward and Back buttons in the Web browser window. Which JavaScript object will he use?

A. window

B. screen

C. history

D. navigator

The same origin policy was introduced at the same time as HTML5 to limit location changes in browser windows that are using frames. Given this policy which of the following would be a valid new location of a frame on the Web site http // www.ClWCertified corn?

A. Option A

B. Option B

C. Option C

D. Option D

Derrick is building a Web form to collect user data for a retail Web site. He will be collecting the users name e-mail address phone number, physical address and credit card information. What should he do to protect his users, when collecting this data?

A. Notify users how their data is being stored and used on the Web site.

B. Use signed scripts to keep the user data secure on the server.

C. Advise users to install anti-virus software to keep their data secure.

D. Advise users to disable JavaScript in their browsers, to keep information secure.

Which script will display Configurations, you won! In the browser when the script is run?

A. Option A

B. Option B

C. Option C

D. Option D