Interview Questions

Q:

Differentiate linked list from arrays.

Answer

Arrays can store data in a fix allotted space. The use of linked list allows more flexibility because space is dynamically allocated as needed.

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Q:

What is the difference between a Windows server operating system and a workstation version?

Answer

The server version of a Windows operating system is designed to provide more optimized networking services over a network. It can manage domains better and it includes more security feature and data backup support. Workstation versions act merely as clients and therefore do not need to have as much resources when compared to the server versions.

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Q:

How E-commerce works?

Answer

=> When a consumer wants to buy a certain product, he go to the website and selects the product he wants to buy. 


=> Once the product is selected, the consumer transaction is moved to the online transaction server where he places an order. 


=> The informations is exchanged over a secure channel through a private gateway to a processing network. 


=> The networked banks accept or reject the transaction.


 All this happens in just a matter of seconds. E-commerce is a very secure due to the SSL (Secure Socket Layer) technology.

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Subject: Web Technology

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Q:

What is the difference between an Interface and an Abstract class?

Answer

An abstract class can have instance methods that implement a default behavior. An Interface can only declare constants and instance methods, but cannot implement default behavior and all methods are implicitly abstract. An interface has all public members and no implementation. An abstract class is a class which may have the usual flavors of class members (private, protected, etc.), but has some abstract methods.

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Subject: Java

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Q:

What is the difference between method overriding and overloading?

Answer

Overriding is a method with the same name and arguments as in a parent, whereas overloading is the same method name but different arguments

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Subject: Java

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Q:

How to set breakpoints?

Answer

Setting up the break points:



  1.  Go to the line where you need to mark the breakpoint.

  2.  Click with mouse on left corner margin of that line.

  3.  Another way is to press F9

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Subject: .NET

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Q:

What is Broadcast ?

Answer

To send data/info to all of the members of the network..( simple 176.16.255.255 for class B network)

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Q:

What is a CDATA section in XML?

Answer

CDATA - (Unparsed) Character Data


The term CDATA is used when you dont want some text data to be parsed by the XML parser.


A CDATA section starts with "<![CDATA[" and ends with "]]>": 

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Subject: Web Technology

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