Technology Questions

The main reason why the scope resolution operator (::) cannot be overloaded is that only operators that take in values as parameters can be overloaded. The scope resolution operator does not take a value as parameter.

- The Dictionary class is an abstract class.

- Classes like Hashtable which map keys to values inherit from this class. 

- An object can be looked for if a dictionary and a key is provided.

- Any non-null object can be used as a key and as a value.

ABAP (Advanced Business Application Programming) is a high level programming language created by the German software company SAP. It is currently positioned as the language for programming SAP's Web Application Server, part of its NetWeaver platform for building business applications. Its syntax is somewhat similar to COBOL.

Web application provides services (Free and Paid) apart from information.

Ex: Online Banking System

It provides Bank  information , Branches & ATM information, Loans information etc...

And It provides balance enquiry, Fund transfer, Bill payments like services.

Some important differences between Canvas and SVG:

- Canvas is resolution dependent while SVG is not. 

- Canvas does not provide any support for event handlers while SVG does. 

- Canvas is suitable for graphic-intensive games while SVG is not suitable for gaming.

- Canvas is suitable for small rendering areas while SVG is suitable for large rendering areas like Google maps.

With HTML5, it is possible for the web pages to store the data locally in the user's browser. This web storage is much faster and secured than the cookies. Also, a larger amount of data can be stored without causing any adverse effect to the performance of the website. 

The data here is not included with every server request. It is used ONLY when it is asked for. It is only that particular web page that can access the data stored by itself.

- Class selector can be given to an overall block. This is sometimes termed as block element as well, whereas ID selector identifies a unique name and a style for a specific element. 

- ID selector declares the style for only one particular element which can be differentiated from other element, whereas Class selector is being given for the whole complete block.

There are different types of hosting provided to upload and share their files using the web or Internet. 

- Free web hosting service: It provides limited services and offers it to companies in that it offers advertisements and other services with limitations. 

- Shared web hosting service: where a server shares many websites all placed at one place having the range from few to hundred. 

* The domains are most probably remains shared with a common pool of resources that is based on the server like RAM and CPU.

- Reseller web hosting: This is the web hosting that allows clients to provide web hosting to others. This includes individual domains that are listed using the affiliated with a reseller. 

- Virtual Dedicated Server: This is also known as also known as a Virtual Private Server (VPS). This provided the divided server resources in the virtual servers and the method that doesn’t relate directly to the hardware. 

- Home server: This is a single machine server that can be thought as a personal server that is used to host one or more web sites using the connection.