Programming Concepts Interview Preparation Guide
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Conceptual frequently Asked Questions by expert members with experience in Programming Concepts. So get preparation for the Conceptual job interview questions

112 Programming Concepts Questions and Answers:

1 :: Tell me what is the difference between collision domain and broad cast domain?

A collision domain is a logical area in a computer network where data packets can "collide" with one another, in particular in the Ethernet networking protocol. The more collisions in a network the less efficient it is.

A broadcast domain is a logical area in a computer network where any computer connected to the computer network can directly transmit to any other in the domain without having to go through a routing device.
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2 :: Can you split the following code?
char far*scr=(char far*) 0xB8000000L?

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3 :: How to schedule graphs in Ab initio using unix?

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6 :: Explain the difference between update, verify and debug mode?

These definitions are for winrunner Run modes

Verify: When ever we want to check the behavior of an application and to save the result we use verify run mode

update: When ever we want to create a new expected results for GUi checkpoints and Bitmap checkpoint we use update run mode

Debug: When ever we want to run a script after update without any errors in syntax we use Debug run mode
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8 :: Tell me why does sizeof() say as operator?

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9 :: Explain what is the use of == and equals() method?

The == operator compare whether two object references are refer to the same instance or not.

The equals() method compare the characters(contents) of two String object.

example:

String a="Hai";
String b="Hai";
String c=new String("Hai");
System.out.println(a==b); //True
System.out.println(a==c); //False
System.out.println(a.equals(b)); //True
System.out.println(a.equals(c)); //True
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