Interview Questions

Q:

What is PHP's mysqli Extension?

Answer

The mysqli extension , or as it is sometimes known, the MYSQL improved extension ,was developed to take advantage of new features found in MYSQL systems versions 4.1.3 and later.

The mysqli extension has a number of benfits,the key enhancements over the mysql extension being:
=> Object-oriented interface
=> Support for prepared statements
=> Support for multiple statements
=> Support for transactions
=> Enhanced debugging capabilities
=> Embedded server support

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Subject: PHP

0 3991
Q:

How would you automatically transfer your visitors to a new web page?

Answer

- You can do it with the help of meta tag mentioned below: 


<META HTTP-EQUIV="Refresh" CONTENT="2"; URL="https://www.yourname.com"> 


- Place this tag between <HEAD></HEAD> . 


- It will load yousite.com in 2 seconds.

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Subject: Web Technology

1 3990
Q:

What is the difference between characters 23 and x23?

Answer The first one is octal 23, the second is hex 23
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Subject: PHP

0 3978
Q:

What is a Wrapper class?

Answer

Wrapper classes wrap primitive values in a class and offers utility to access them through objects. Some of the primitive wrapper data types are:


Byte, short, int, long, float, double, char, Boolean.


Example: 


Create a class name VectorAdd to populate it with integer values using the add(int, object) method.


public class VectorAdd


{


       public static void main(String argv[])


       {


             Vector v = new Vector();


             v.add(0,new Integer(10));


             v.add(1,new Integer(20));


             v.add(2,new Integer(30));


             for(int i=0; i < v.size();i ++)


             {


                  Integer iw =(Integer) v.get(i);


                  System.out.println(iw);


             }


       }


}

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Subject: C++

0 3966
Q:

Where is the reference stored?

A) stack B) heap
C) queue D) None
 
Answer & Explanation Answer: A) stack

Explanation:

Referencee is stored in stack

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Filed Under: C++

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Q:

What are three ways to reduce page load time?

Answer

There are many answers here: Reduce image sizes, remove unnecessary widgets, HTTP compression, put CSS at the top and script references at the bottom or in external files, reduce lookups, minimize redirects, caching, etc.

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Q:

What is a DB2 bind?

Answer

A DB2 bind is a process that builds an access path to DB2 tables. 

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Q:

Why Haven't you received any offers so far?

Answer

You're just as choosy about finding the right job as the interviewer is about hiring the right candidate. Don't whine or show that the search is upsetting you. If you've already fielded an offer or two,you might say


        " I have had an offer.But the situatioin was not right for me. I'm especially glad that I didn't accept, because I now have a shot at landing this position."


It's important to tell the truth, however, because the interviewer's next logical questions may be the following:


who made you an offer? For what type of position? At what salary?


If you've already lied, you're in hot water now! some interviewers will consider any admission of lying in these circumstances your "voluntary" offer to end the interview!


Many interviewers know a great deal about their competitors and which positions they're trying to fill. If you did the smart thing and told the truth, feel free to name the company.


It's important to stress that the position you turned down was very similar to the one you're applying for now. After all, if the job you are currently interviewing for is perfect for you-as you've undoubtedly already told the interviewer three or four times - why would be at all interested in something very different at the other company? 

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Subject: Salary Related

1 3941