You are developing an application that consumes a Windows Communication Foundation (WCF) service.
The application interacts with the service by using the following code. (Line numbers are included for reference
only.)

You need to authenticate to the WCF service.
What should you do?

You are developing a customer contact form that will be displayed on a page of a company’s website. The page
collects information about the customer.
If a customer enters a value before submitting the form, it must be a valid email address.
You need to ensure that the data validation requirement is met.
What should you use?

DRAG DROP
You are validating user input by using JavaScript and regular expressions.
A group of predefined regular expressions will validate two input fields:
An email address in a function named validateEmail (for example, firstname@contoso.com)
A nine-digit number that allows optional hyphens after the second and fifth character in a function named
validateSSN(for example, 555555555 or 555-55-5555)
You need to use the correct expression to validate the input.
Which expression should you insert into each function? (To answer, drag the appropriate regular expression
statement to the correct location. Each regular expression statement may be used once, more than once, or not
at all. You may need to drag the split bar between panes or scroll to view content.)
Select and Place:

You are developing a customer web form that includes the following HTML.
<input id=”txtValue” type=”text” />
A customer must enter a valid age in the text box prior to submitting the form.
You need to add validation to the control.Which code segment should you use?