Searching for "AP"

Q:

What is Bit Mapped Index?

Answer

Bitmap indexes make use of bit arrays (bitmaps) to answer queries by performing bitwise logical operations.


Bitmap indexes are useful in the data warehousing applications.


Bitmap indexes have a significant space and performance advantage over other structures for such data.


Tables that have less number of insert or update operations can be good candidates.


The advantages of Bitmap indexes are:


   - They have a highly compressed structure, making them fast to read.


   - Their structure makes it possible for the system to combine multiple indexes together so that they can      access the underlying table faster.


The Disadvantage of Bitmap indexes is:


  - The overhead on maintaining them is enormous. 

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Q:

What is an OLTP system and OLAP system?

Answer

OLTP stands for OnLine Transaction Processing. Applications that supports and manges transactions which involve high volumes of data are supported by OLTP system. OLTP is based on client-server architecture and supports transactions across networks.


OLAP stands for OnLine Analytical Processing. Business data analysis and complex calculations on low volumes of data are performed by OLAP. An insight of data coming from various resources can be gained by a user with the support of OLAP.

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Q:

Describe the Basic Steps used to create a tiles application in DHTML.

Answer

- Create a template that designs a layout for your application.


- Create the composing pages.


- Create a definition which means that suppose that you configured Tiles, in web.xml, to startup using the TilesServlet, we need to specify which files will contain the Tiles definitions to load.


- Render the definition.

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Subject: Web Technology

Q:

What is the Fail-safe approach?

Answer

- Fail-safe approach defines the level that divides the security such that it is safe even in case the system is failed.


- The fail safe approach doesn’t allow an attacker to take the advantage by breaking in the system and crashes out.


- This approach allows the web server to perform the routines even if the system runs out of the memory in case of any attack. 


- The system in attacks doesn’t skip the access to the control check or it doesn’t skip serving any document requested. 


- Fail safe approach can force the web server to run of the memory and have a DoS attack.

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Subject: Web Technology

Q:

What is EXtensible Application Markup Language (XAML)?

Answer

XAML is a markup language used to define dynamic or static UIs for .NET applications. Though Windows Vista would be used to design XAML UIs, they can be applied to Windows XP or Windows 2003 too.


XAML is similar to MVC in terms of the separation of the UI code from application logic.


XAML is bound to Windows Presentation foundation to build a UI in .NET 3.0 and Windows Vista.


XAML Features:


- XAML inherits all XML definitions and rules.


- It also contains HTML, XHTML and other markup languages for UI.


- Every XAML element represents a .NET CLR class due to which working with XAML becomes simple.


- The application logic can be put in a separate file or be embedded in XAML file itself as XAML in conjunction with Windows Presentation Foundation model to provide the developers design a good UI in ASP.NET.


- XAML files get compiled to BAML files which are smaller than XAML and easier to read which make them faster to load.

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Subject: Web Technology

Q:

What is web application?

Answer

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.

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Subject: Web Technology

Q:

What happens if the list-style-type property is used on a non-list element like a paragraph?

Answer

Here the property will be ignored without having any effect on the paragraph.

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Subject: Web Technology

Q:

Can HTML 5 get the geographical position of a user?

Answer

- Yes, HTML 5 can get the location of a user with the use of Geolocation API.


- Use getCurrentPosition() method to get the user’s current position.

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Subject: Web Technology