Technology Questions

XPath specifies the path in the XML document which has hierarchical elements. XPath is used with XPointer and XSLT and parser.  

Overriding means changing behavior of methods of base class in derive class by overriding the base class methods. If class A is a base class with method ’calculate’ and class B inherits class A, thus derives method ’calculate’ of class A. The behavior of ’calculate’ in class B can be changed by overriding it.

Security features are very essential in the system as it provides an overall security of the system by applying the patches and the services that keeps the unwanted access away. 

The security features included are as follows:

- Use of algorithms in relation to, the security and the system to, solve the problem of the security. 

- Use of SSL or any encryption method to, protect the system from intrusion or any other attack. 

- Use of SSL in the SimpleWebServer that doesn’t provides the protection against the DoS attack and doesn’t allow the accessing to, be done using the /etc/shadow.

The major benefits of Ecommerce are:

- Secure       : More secure than a cheque.

- Fast           : The transactions take not more than a few seconds

- Always on  : The purchases can be made 24/7

- Convenient:  Ease of purchasing

-Reduced cost price : Reduction of Marketing and Advertising Costs

COM is short for Component Object Model. It is a Microsoft technology that allows developers to make use of reusable components and services provided by Microsoft. COM technology includes COM+, DCOM and ActiveX.

Structure and table both are 2/2 matrices but there are many differences between table and structure.

1. Table can store the data physically but a structure dose not store.
2. Table can have primary key but a structure dose not have.
3. Table can have the technical attribute but a structure dose not have.

structure doesn't contain technical attributes.
structure doesn't contain primary key.
structure doesn't stores underline database level.

These are the new form elements introduced in HTML 5:

Color

Date

Datetime-local

Email

Time

Url

Range

Telephone

Number

Search

Android Application Architecture has the following components:

> Services - like Network Operation

> Intent - To perform inter-communication between activities or services

> Resource Externalization - such as strings and graphics

> Notification signaling users - light, sound, icon, notification, dialog etc.

> Content Providers - They share data between applications