Interview Questions

Q:

Explain the validation controls. How many validation controls in ASP.NET 4.0?

Answer

Validation controls are responsible to validate the data of an input control. Whenever you provide any input to an application, it performs the validation and displays an error message to user, in case the validation fails.

ASP.NET 4.0 contains the following six types of validation controls:

   => CompareValidator - Performs a comparison between the values contained in two controls.
   => CustomValidator - Writes your own method to perform extra validation.
   => RangeValidator- Checks value according to the range of value.
   => RegularExpressionValidator - Ensures that input is according to the specified pattern or not.
   =>  RequiredFieldValidator - Checks either a control is empty or not.
   => ValidationSummary - Displays a summary of all validation error in a central location.

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Subject: .NET

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Q:

Explain about services in Angular.js ?

Answer

In angular.js services are the singleton objects or functions that are used for carrying out specific tasks.
It holds some business logic and these function can be called as controllers, directive, filters and so on.

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Subject: Web Technology

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Q:

What is the advantage of using ADO?

Answer

ADO or Active X Data objects, allows developers to create applications that can interoperate well with other data application services.

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Q:

What are your weaknesses?

Answer

What are your weaknesses?


This is a very common interview question for many jobs across industries. Most people feel Answering strengths is easy but weaknesses is difficult. If approached the right way this question will give you chance to build trust. You have 3 options/approaches to answer this question. 


1. Deny having any weaknesses. This approach is least common and surely not the way to go.


2. Spin a Weakness into a strength. Like, "I'm a perfectionist" or "I care too much"


Note - This is very common approach and some interviewers think you are not being honest. 


3. Give an honest answer (Recommended). Answer the question honestly without shooting yourself in the foot. 


E.g. My weakness is public speaking, I am working on it. Ofcourse make sure this is not the primary requirement of the job. 

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Q:

What is the difference between PHP and JavaScript?

Answer

The difference lies with the execution of the languages. PHP is server side scripting language, which means that it can’t interact directly with the user. Whereas, JavaScript is client side scripting language, that is used to interact directly with the user.


 

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Subject: PHP

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Q:

We can modify an existing Company from

A) Company Info > Alter B) Gateway of Tally > Modify Company
C) Company Info > Alter Company D) All of the above
 
Answer & Explanation Answer: A) Company Info > Alter

Explanation:
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Filed Under: SQL
Job Role: Analyst , Database Administration , IT Trainer

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Q:

What is the use of CSS sprites?

Answer

- A web page with large number of images takes a longer time to load. This is because each image separately sends out a http request.


- The concept of CSS sprite helps in reducing this loading time for a web page by combining various small images into one image. This reduces the numbers of http request and hence the loading time.

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Subject: Web Technology

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Q:

What do you accomplish by GROUP BY ... HAVING clause?

Answer

GROUP BY partitions the selected rows on the distinct values of the column on which you group by. HAVING selects GROUPs which match the criteria specified

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