Interview Questions

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++

1 3781
Q:

What is the table that is used for aging bucket report, what is the main purpose of this report?

Answer

Time periods you define to age your debit items. Aging buckets are used in the Aging reports to see both current and outstanding debit items. For example you can define an aging bucket that includes all debit items that are 1 to 30 days past due.


Normal table used for this Report is < 30 days 30-60 days 60-90 days 90-180 days and >180 days

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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

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Q:

When is the finalize() called ? What is the purpose of finalization ?

Answer

The finalize method is called by the garbage collector, just before releasing the object’s memory. It is normally advised to release resources held by the object inside the finalize method.

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Subject: Java

1 3771
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 3769
Q:

Can you explain how to insert an image in table in oracle?

Answer

Insert image into a table


Create the following table:


      create table pics_table (


      bfile_id number,


      bfile_desc varchar2(30),


      bfile_loc bfile,


      bfile_type varchar2(4))


      TABLESPACE appl_data


      storage (initial 1m next 1m pctincrease 0) 


Insert Query:


      INSERT INTO pics_table


      VALUES(4,'test image',bfilename('GIF_FILES','Test.JPG'),'JPEG'); 

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Subject: Oracle

2 3764
Q:

What do you know about the big-O notation and can you give some examples with respect to different data structures ?

Answer

The Big-O notation simply describes how well an algorithm scales or performs in the worst case scenario as the number of elements in a data structure increases. The Big-O notation can also be used to describe other behavior such as memory consumption. Since the collection classes are actually data structures, we usually use the Big-O notation to chose the best implementation to use, based on time, memory and performance. Big-O notation can give a good indication about performance for large amounts of data.

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Subject: Java

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Q:

Explain When is Marshalling not necessary?

Answer

Marshalling is the process of packaging and sending interface method parameters across thread, process or machine boundaries.


It is not necessary when the client and the server are on the same computer.

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