Interview Questions

Q:

What are the Advantages of PL/SQL?

Answer

- Because of the block nature, multiple statements are processed at once thereby improving performance. 


- PL/SQL handles exceptions on catching which, action can be taken. 


- PL/SQL is highly portable as it works with all procedural languages and is highly secured because of privileges.


 

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Subject: Oracle

0 2114
Q:

What is Constructor?

Answer

Constructor is not a special method.


Constructor is block of code that is executed automatically whenever object of the class is created.

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Subject: Java

0 2107
Q:

What is the use of Virtual Domain?

Answer

- Virtual domain is the domain of the client on which they can run their applications without having to install the server or hardware. 


- The software need not to be installed physically on the server as it can be done using the local repositories and maintaining the domain locally. 


- Using the virtual domain the server storage space is utilized efficiently and the data can be made more secure before publishing it online. 


- Virtual domains are used to represent the personal Internet web address domain name and can be made with your personal one. 


- Virtual domain provides more security in terms of using your own personalized domain and allows the access to the resources that are on web.

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Subject: Web Technology

0 2106
Q:

What are wrapped classes ?

Answer

Wrapped classes are classes that allow primitive types to be accessed as objects.

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Subject: Java

0 2106
Q:

How do you decide when to use HashMap and when to use TreeMap ?

Answer

For inserting, deleting, and locating elements in a Map, the HashMap offers the best alternative. If, however, you need to traverse the keys in a sorted order, then TreeMap is your better alternative. Depending upon the size of your collection, it may be faster to add elements to a HashMap, then convert the map to a TreeMap for sorted key traversal.


 

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Subject: Java

1 2105
Q:

Why an infocube has maximum of 16 dimensions?

Answer

Because any Database will supports only 16 foreign keys in a database table. 


It depends upon the Database limits provided to define the Foreign key constraint, e.g. in Sql Server 2005, the recommended max limit for foreign keys is 253, but you can define more.

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0 2104
Q:

What is CSS selector?

Answer

- Basically it is a string that identifies the elements to which a particular declaration or set of declarations will apply. 


- It can also be referred to as a link between the HTML document and the style sheet. 


- It is equivalent of HTML elements.


For example : 


A {text-indent: 12pt}


Here, the selector is A, which is called as type selector.

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Subject: Web Technology

0 2104
Q:

What strategies would you use to motivate your team?

Answer

Here is an example statement to consider as you prepare your answer.


On motivating others by using recognizing their achievements: I consider that recognizing good aspects of worker performance is critical to motivating maximum people. For example, I control a staff of 10 employees, and I observed that one of the workers was somewhat introverted and tended to stop in the background. He achieved correctly but was reluctant to contribute at meetings, and I thought he could be extra productive if optimally motivated. I commenced an each day ritual of supervising in with him and checking his output. I provided good feedback concerning  his daily achievements. I discovered that the quantity and quality of his output increased as I interacted with him more regularly. I was able to call upon him at meetings considering that I understood the details of his work better and ask him to share few of his successful strategies with colleagues.

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Subject: Team Work

6 2102