70-528 NET Framework 2.0-Web-based Client Development Training Course

Demo Question 7.

You work as a Microsoft ASP.NET developer at EliteCertify.com. EliteCertify.com uses the Microsoft Visual Studio .NET 2005 as their application development platform. You use a Microsoft Windows XP Professional client computer named EliteCertify -WS528 as your development computer. Internet Information Services (IIS) is installed on EliteCertify -WS528. You are developing a Web application that will be integrated into the EliteCertify.com e-Commerce Web site. You used the Load method of the XmlDocument class to load data from an XML document. The XML document is shown in the following exhibit. You later realize that the required exams should be five and not four. You want to use an XmlDocument instance named doc to change the number of required exams to five. What code segment should you use?

A. Dim aNode As XmlNode = doc.DocumentElement.FirstChild.FirstChild; aNode.ChildNodes(2).InnerText = "5";
B. Dim aNode As XmlNode = doc.FirstChild.FirstChild; aNode.ChildNodes(2).Value = "5";
C. Dim aNode As XmlNode = doc. FirstChild.FirstChild; aNode.ChildNodes(2).InnerText = "5";
D. Dim aNode As XmlNode = doc.DocumentElement.FirstChild.FirstChild; aNode.ChildNodes(2).Value = "5";


Display Answer

Answer: A

Explanation: This code first accesses the document element, which is Vendor. It then accesses the first child of the Vendor element, which is Certification. It then accesses the first child of the Certification element, which is Exams. It then accesses the third child of the Exams element, which is Required - the first element is index 0. It then sets the inner text of the Required element to 5. Incorrect