Interview Questions

Q:

What is an explicit constructor?

Answer

A conversion constructor declared with the explicit keyword. The compiler does not use an explicit constructor to implement an implied conversion of types. It’s purpose is reserved explicitly for construction

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Subject: C++
Job Role: Software Architect

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Q:

What is Language Integrated Query (LINQ)?

Answer

LINQ is a programming model that is the composition of general-purpose standard query operators that allow you to work with data, regardless of the data source in any .NET based programming language. It is the name given to a set of technologies based on the integration of query capabilities into any .NET language.

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Subject: .NET

0 3297
Q:

What is the difference between finance and accounts? most of the companies having a different section like finance and accounts. why they aren't had only single section neither finance nor accounts?

Answer

Finance:It is the branch of economics that studies the management of money and other assets.In simpler terms it can be defined as the commercial activity of providing funds and capital.It addresses questions like -- what funds are required by the org & How they can be raised &  How they have to be allocated etc.


Accounts: It is the occupation of maintaining and auditing records and preparing financial reports for a business. Accounts provides quantitative information about finances. It addresses issues like what amount of funds have been allocated to various activities, how the book-keeping is being done etc.


Both functions are distinct but complimentary to each other.


Finance and accounts are highly specilized and distinct areas and hence most organizations have seperate sections of finance and accounts.

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Q:

If you are current on the owner of a set, what is the difference between an obtain next and obtain first in IDMS?

Answer

No difference. There is a difference between obtain first and obtain next for an area sweep, but not when current on the owner in a set.

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Q:

How to create recursive query in SQL Server?

Answer

Recursive query can be create in SQL using stored procedure but you can also use CTE (Common table expression). It might be also worth asking about performance as CTE is not always very fast.

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Subject: SQL

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Q:

How is sign stored in a COMP field?

Answer

It is stored in the most significant bit. Bit is ON if -ve, OFF if +ve.

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1 3289
Q:

For printing out strings, there are echo, print and printf. Explain the differences.

Answer - echo is the most primitive of them, and just outputs the contents following the construct to the screen. print is also a construct (so parentheses are optional when calling it), but it returns TRUE on successful output and FALSE if it was unable to print out the string. However, you can pass multiple parameters to echo, like:

and it will output the string "Welcome to TechInterviews!" print does not take multiple parameters. It is also generally argued that echo is faster, but usually the speed advantage is negligible, and might not be there for future versions of PHP. printf is a function, not a construct, and allows such advantages as formatted output, but it’s the slowest way to print out data out of echo, print and printf.
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Subject: PHP

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Q:

What is the differences between ABAP and OOABAP. In which situation we use OOABAP?

Answer

OOABAP is used to develop BSP/PCUI applications and also anthing involved object oriented like BADIs, SmartForms..etc.where as ABAP is used to develop traditional programs in R/3.

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Subject: SAP

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