Technology Questions

Q:

What is the use of eucalyptus in cloud computing environment?

Answer

Eucalyptus stands for “Elastic Utility Computing Architecture for Linking Your Programs to Useful Systems” and provides an open source software infrastructure to implement clusters in cloud computing platform. It is used to build private, public and hybrid clouds. It can also produce your own datacenter into a private cloud and allow you to extend the functionality to many other organizations. Eucalyptus provides APIs to be used with the web services to cope up with the demand of resources used in the private clouds.

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Subject: Cloud Computing

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Q:

What is the use of controller object UIApplication?

Answer

Controller object UIApplication is used without subclassing to manage the application event loop.


It coordinates other high-level app behaviors. 


It works along with the app delegate object which contains app-level logic.

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Q:

What are the important topologies for networks?

Answer

BUS topology:


In this each computer is directly connected to primary network cable in a single line.


 


STAR topology:


In this all computers are connected using a central hub.

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Q:

What is the difference between Property Get, Set and Let?

Answer

Set - Value is assigned to ActiveX Object from the form.


Let - Value is retried to ActiveX Object from the form.


Get - Assigns the value of an expression to a variable or property.

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Q:

What are the different ways to Declare and Instantiate an object in Visual Basic 6?

Answer

Dim obj as OBJ.CLASS with eitherSet obj = New OBJ.CLASS orSet obj = CreateObject(OBJ.CLASS?) orSet obj = GetObject( , OBJ.CLASS?)orDim obj as New OBJ.CLASS 

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Q:

What is the role of the DataSet object in ADO.NET?

Answer

One of the major component of ADO.NET is the DataSet object, which always remains disconnected from the database and reduces the load on the database.

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Subject: .NET

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Q:

What do you mean by late binding?

Answer

Late binding refers to function calls that are not resolved until run time. Virtual functions are used to achieve late binding. When access is via a base pointer or reference, the virtual function actually called is determined by the type of object pointed to by the pointer.

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Subject: C++

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Q:

In HTML document the tags are

A) hidden keywords B) used to display the content
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications.

HTML tags are the hidden keywords within a web page that define how your web browser must format and display the content. Most tags must have two parts, an opening and a closing part. For example, <html> is the opening tag and </html> is the closing tag.

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Filed Under: Web Technology
Job Role: IT Trainer

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