Online Access Free 070-544 Exam Questions

You deploy a Virtual Earth 6.0 application that uses Microsoft ASP.NET Asynchronous
JavaScript and XML (AJAX) implementation to retrieve data.
The myAjaxCallback function evaluates any AJAX response. The function contains the following code segment. (Line numbers are included for reference only.)
0 1 function myAjaxCallback (){
0 2 if (xmlHttp.readyState == 4){
0 3 ...
0 4 }
0 5 }
At the time the request was made, the server was overloaded. When the server processed the AJAX request, the server returned an error message.
You need to ensure that the application does not produce a fatal exception due to the error generated from the AJAX response.
Which code segment should you insert at line 03?

• A.try{ eval(xmlHttp.responseText); } catch(error){ if(xmlHttp.status == 200){ eval(xmlHttp.responseText); } }
• B.If(xmlHttp.status == 200){ eval(xmlHttp.responseText); } else{ // Update user with status here. }
• C.try{ eval(xmlHttp.responseText); } catch(error){ eval(xmlHttp.responseXML); }
• D.try{ eval(xmlHttp.responseText); } catch(error){ // Update user with status here. }

You are creating a Web application by using the Virtual Earth 6.0 map control.
A Web page of the application loads a map of a predefined location by using the following code segment.
var map = null;
var defView1= new VEMapViewSpecification(new
VELatLong(40.689167,-74.04472), 16, 360, -45, 0);
function GetMap(){
map = new VEMap('myMap');
map.LoadMap();
map.SetMapView(defView1);
map.SetMapStyle('h')
map.SetMapMode(VEMapMode.Mode3D);
}
You need to display a zoomed out view of the main map in a separate control on the same
Web page.
Which code segment should you use?

• A.map2= map.ShowMiniMap(50, 300); defView1=map.GetMapView(); var
  zL=map.GetZoomLevel(); map2.LoadMap(); map2.SetMapView(defView1); zL=zL-6; map2.SetZoomLevel(zL);
• B.map2=new VEMap('myOverViewMap'); defView1=map.GetMapView(); var
  zL=map.GetZoomLevel(); map2.LoadMap(); map2.SetMapView(defView1); zL=zL-6; map2.SetZoomLevel(zL);
• C.map.ShowMiniMap(50, 300);
• D.map2=new VEMap('myOverViewMap'); defView1=map.GetMapView(); var
  zL=map.GetZoomLevel(); map.ShowControl('myOverViewMap');
  map2.SetMapView(defView1); zL=zL-6; map2.SetZoomLevel(zL);

You are integrating third-party data into a Virtual Earth 6.0 application. The data that is retrieved from the third party is stored in an array named Results. The Results array is stored inside a Web handler. The data is stored in the following format.
R esults[0]["name"] = "A. Datum Corporation";
Results[0]["address"] = " 123 Main St. , New York , NY ";
Results[0]["latitude"] = "40.123";
Results[0]["longitude"] = "-70.456";
Results[0]["thumbnail"] = "http://www.adatum.com/st3465.jpg";
...
Results[x]
The Web handler uses the GeoRSSFeed class to accept items of type GeoRSSItem. The class contains the ToString() method that writes the GeoRSS feed to a string.
The Web handler GeoRSS integration is defined by the following code segment. (Line numbers are included for reference only.)
0 1 GeoRSSFeed feed = new GeoRSSFeed();
0 2 GeoRSSItem curItem;
0 3 for (int i = 0; i < Results.length; i++){
0 4 curItem = new GeoRSSItem();
0 5 ...
0 6 feed.Add(curItem);
0 7 }
0 8 // Write feed to HTTP Response
0 9 context.Write(feed.ToString());
The Web handler uses the GeoRSSItem class that contains the following code segment.
(Line numbers are included for reference only.)
1 0 public class GeoRSSItem {
1 1 public Dictionary < string, string > elements;
1 2 publ ic GeoRSSItem(){
1 3 elements = Dictionary < string, string > ();
1 4 }
1 5 public void Add(string pName, string pValue){
1 6 elements.Add(pName, pValue);
1 7 }
1 8 }
You need to encode the data inside the Results array into the GeoRSS format.
Which code segment should you insert at line 05?

• A.String [] keys = Results[i].Keys; String curKey; For (int i = 0; i < keys.length; i++){ curKey = keys[i]; curItem.Add(curKey, Results[i][curKey]); }
• B.curItem.Add("title", Results[i]["name"]); curItem.Add("description", string.Format("{0}|{1}",
  _ Results[i]["address"], _ Results[i]["thumbnail"]); curItem.Add("latitude",
  Results[i]["latitude"]); cur Item.Add("longitude", Results[i]["longitude"]);
• C.curItem.Add("name", Results[i]["name"]);
  curItem.Add("address", string.Format("{0}|{1}", _
  Results[i]["address"], _
  Results[i]["thumbnail"]);
  curItem.Add("latitude", Results[i]["latitude"]);
  curItem.Add("longitude", Results[i]["longitude"]);
• D.curItem.Add("title", Results[i]["name"]); curItem.Add("description", Results[i]["address"]); curItem.Add("latitude", Results[i]["latitude"]); curItem.Add("longitude",
  Results[i]["longitude"]); curItem.Add("icon", Results[i]["thumbnail"]);

You are creating a Web application by using the Virtual Earth 6.0 map control in the
Microsoft Visual Studio environment. A Web page in the application is programmed by using the client-side JavaScript code. You insert break points at appropriate locations within the code. When you debug the application, you find that you are able to step into the server-side code. However, you are unable to step into the client-side JavaScript code.
You need to debug the client-side JavaScript code. What should you do?

• A.In Visual Studio, select the Attach to Process option from the Debug menu. Then attach the debugger to the Microsoft Internet Explorer process.
• B.In Microsoft Internet Explorer, select the Enable Display a notification about every script error option in the Internet Options dialog box.
• C.In the client-side JavaScript code, insert the Debugger command before each break point.
• D.In Microsoft Internet Explorer, clear the Disable Script Debugging (Internet Explorer) option in the Internet Options dialog box.

DRAG DROP - (Topic 1)
The location data of your company branch offices is stored as description and title in pushpins on a Virtual Earth 6.0 map.
You need to ensure that the data is displayed in a data panel named BranchInfo on top of the map every time a user moves the mouse over the pushpin.
What should you do? (To answer, move all the actions from the list of actions to the answer area and arrange them in the correct order.)

Correct Answer: