Technology Questions

Q:

What is the basic difference between ASP and ASP.NET?

Answer

The basic difference between ASP and ASP.NET is that ASP is interpreted; whereas, ASP.NET is compiled. This implies that since ASP uses VBScript; therefore, when an ASP page is executed, it is interpreted. On the other hand, ASP.NET uses .NET languages, such as C# and VB.NET, which are compiled to Microsoft Intermediate Language (MSIL).

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Subject: .NET

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Q:

How to upload files in Amazon S3?

Answer

Amazon S3 provides uploading of large files and retrieve small offsets for end-to-end transfer data rates. The large file gets stored into small files that are smaller in size. Amazon S3 stores multiple of files together in a bundle or in a compressed form, For example in .gzip or .gz format and then convert them into Amazon S3 objects. The files get uploaded on the Amazon server by the use of FTP or another protocol and then retrieved through the HTTP GET request. The request includes the defined parameters like URL, offset (byte-range) and size (length).

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Subject: Cloud Computing

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Q:

What is MIME?

Answer

MIME - Multi-purpose Internet Mail Extensions. 


MIME types represents a standard way of classifying file types over Internet. 


Web servers and browsers have a list of MIME types, which facilitates files transfer of the same type in the same way, irrespective of operating system they are working in.


A MIME type has two parts: a type and a subtype. They are separated by a slash (/). 


MIME type for Microsoft Word files is application and the subtype is msword, i.e. application/msword.

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Subject: PHP

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Q:

What is a Session?

Answer

A session is a logical object created by the PHP engine to allow you to preserve data across subsequent HTTP requests. Sessions are commonly used to store temporary data to allow multiple PHP pages to offer a complete functional transaction for the same visitor.

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Subject: PHP

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Q:

How can we call DDL statements like CREATE, DROP, TRUNCATE, etc. from PL/SQL?

Answer

EXECUTE IMMEDIATE command can be used to call DDL statements. 


Example:


BEGIN


EXECUTE IMMEDIATE  'TRUNCATE TABLE employee';


END;

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Subject: Oracle

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Q:

What type of Joins have you used?

Answer

The knowledge of Joins is a MUST for every interviewee. Most SQL programmers have used inner join and  outer join[left/right]; but the catch point here is to also mention cross join and self-join.


 

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Subject: SQL

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Q:

What files are important in a bootable Windows XP operating system?

Answer

There are four important files in order to make a bootable Windows XP operating system. These are Ntldr, Ntdetect, Boot.ini and Ntfs.sys

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Q:

How can you avoid callback hells ?

Answer

There are lots of ways to solve the issue of callback hells:


1. Modularization: break callbacks into independent functions
2. Use a control flow library, like async
3. Use generators with Promises
4. Use async/await (note that it is only available in the latest v7 release and not in the LTS version)

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Subject: Java
Job Role: Analyst , IT Trainer

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