Interview Questions

Q:

How does DB2 use multiple table indexes?

Answer

DB2 use the multiple indexes to satisfy multiple predicates in a SELECT statement that are joined by an AND or OR.

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Q:

OMO refers to

Answer

Open Market Operations (OMO) refer to the buying and selling of government securities in the open market in order to expand or contract the amount of money in the banking system.

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Subject: Bank Interview Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

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Q:

What is the return type of the main() method?

Answer Main() method doesn't return anything hence declared void.
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Subject: Java

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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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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:

What are the three levels of definition for the VSAM DEFINE?

Answer

They are DEFINE CLUSTER, DATA and INDEX.

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Q:

How to read and write a file using javascript?

Answer

I/O operations like reading or writing a file is not possible with client-side javascript. However , this can be done by coding a Java applet that reads files for the script. 

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Subject: Web Technology

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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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