Technology Questions

Q:

What are the basic concepts of object oriented programming?

Answer

It is necessary to understand some of the concepts used extensively in object oriented programming.These include


Objects
Classes
Data abstraction and encapsulation
Inheritance
Polymorphism
Dynamic Binding
Message passing

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Subject: C++

0 2307
Q:

What are Child Selectors ?

Answer

A child selector is used when you want to match an element that is the child of another specific element.
The parent and child selectors are separated by spaces.
The following selector locates an unordered list element within a paragraph element and makes a text within that element bold.


p > ul {font-weight: bold;}

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Subject: Web Technology

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Q:

Define and explain COM?

Answer

COM is the component Object Model is a system whch creates application which are binary form that is language independent , object oriented ,modular and reusable .

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Q:

A data warehouse is composed of

A) current data B) internal and external data sources
C) historical data from legacy systems D) historical & current data
 
Answer & Explanation Answer: C) historical data from legacy systems

Explanation:

A data warehouse is a relational database that is designed for query and analysis rather than transaction processing. It usually contains historical data that is derived from transaction data, but it can include data from other sources. Data warehouses are designed to help you analyze your data.

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Filed Under: Oracle
Job Role: Database Administration , IT Trainer

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Q:

Why is free space left in KSDS Dataset?

Answer

While allocating KSDS Datasets, free space is declared at regular intervals at the time of initial loading. This is done because this free space is utilized for keeping the data arranged in sequence physically, even though inserted randomly.

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Q:

What do you mean by multiple inheritance in C++ ?

Answer

Multiple inheritance is a feature in C++ by which one class can be of different types. Say class teaching Assistant is inherited from two classes say teacher and Student.

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Subject: C++

0 2301
Q:

What is .NET Framework?

Answer

.NET Framework is a complete environment that allows developers to develop, run, and deploy the following applications:

 => Console applications
 => Windows Forms applications
 => Windows Presentation Foundation (WPF) applications
 => Web applications (ASP.NET applications)
 => Web services
 => Windows services
 => Service-oriented applications using Windows Communication Foundation (WCF)
 => Workflow-enabled applications using Windows Workflow Foundation (WF)

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Subject: .NET

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Q:

What is Dimensional Modeling?

Answer

Dimensional modeling is often used in Data warehousing. In simpler words it is a rational or consistent design technique used to build a data warehouse. DM uses facts and dimensions of a warehouse for its design. A snow and star flake schema represent data modeling.

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