Web Technology Questions

- Web accelerators are used to increase the loading of the web page faster and by providing extra features of caching, etc. 

- There are tools that are provided like internet accelerator of browser accelerator that provides security from the spyware and adware programs. 

- The security from the programs are required as they are harmful for the computer and the tools uses the strategies of pre-caching in which the data is automatically cached and when the website is opened again then the fetching is being done from the place where the content is saved. 

- Registry tweaks are used to improve the performance offering the risk management techniques for downloading the resources.

Basically website is an information provider, It provides information globally using internet protocols.

Arrays are created by using new Array() in Java Script.

For example : var employees = new Array();

The elements to this array is assigned as follows :

employees[0] = "Kumar"

employees[1] = "Fedrick"

Math object has two constant : Math.PI and Math.E

Math object has following functions:

- Math.abs(val1);

It will give absolute value of val1.

- Math.max(val1,val2);

This fuction will return maximum value from val1 and val2.

- Math.random();

This function will return a random number between 0 and 1.

- Math.floor(val1)

This function will returns decimal value of val1

This is a scripting language developed by Microsoft and is based loosely on Visual Basic. Its functionality in a web environment is dependant upon either an ASP engine or the Windows Scripting Host, and must be used on a Windows hosting platform. 

The storage of cookies on the hard disk depends on OS and the browser. The Netscape navigator on Windows, the file cookies.txt contains all the cookies. The path is :

c:\Program Files\Netscape\Users\username\cookies.txt

The Internet Explorer stores the cookies on a file by name username@website.txt is

c:\Windows\Cookies\username@Website.txt

The cursor can set to wait in JavaScript by using the property ‘cursor’ property. The following example illustrates the usage.

window.document.body.style.cursor = "wait"; 

drawImage(image,x,y) method is used to draw an image on the canvas.