Technology Questions

Q:

What is String Args in Java?

Answer

String Args (String []) is an array of parameters of type String.


In Java, 'args' contains the supplied command-line arguments as an array of String objects. In other words, if you run your program as 'java MyProgram Hello World' then 'args' will contain ["Hello", "World"]. When a java class is executed from the console, the main method is what is called.

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Q:

What are the different types of components involved in URI?

Answer

URI is known as Uniform Resource Identifier as it identifies the resources requested by clients and fetches them from the server. 


The components that are used in URI are as follows:


- http: is the first thing that is used in a URL and it is used to tell what kind of resource that needs to be retrieved over the server.


 This includes the server details and it is itself a protocol known as Hypertext Transfer Protocol (HTTP) that is used to fetch the information. 


- Web browsers sometimes use the secure protocol that is represented using HTTPs used in case of secure transaction over the internet. 


- FTP: is also a protocol that is known as File Transfer Protocol that allows the transfer from a file from local computer to server

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Subject: Web Technology

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Q:

What’s the difference between include and require?

Answer It’s how they handle failures. If the file is not found by require(), it will cause a fatal error and halt the execution of the script. If the file is not found by include(), a warning will be issued, but execution will continue.
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Subject: PHP

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Q:

What is multicast?

Answer

To send data/info to group of computers using same network

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Q:

What is the difference between TCP and UDP?

Answer

TCP-Transmission Control Protocol


UDP- user Datagram protocol


UDP is user assisted program and converts the application into the encapsulated form and makes it end point for data to send and then TCP helps in transmission or broadcast!

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Q:

What are the different functions in sorting an array?

Answer

sort() , rsort(), asort()
ksort()   , usort()
arsort()  , uksort()
natsort() , natcasesort()
array_multisort()

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Subject: PHP

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Q:

What is ASP.NET?

Answer

ASP.NET is a specification developed by Microsoft to create dynamic Web applications, Web sites, and Web services. It is a part of .NET Framework. You can create ASP.NET applications in most of the .NET compatible languages, such as Visual Basic, C#, and J#. The ASP.NET compiles the Web pages and provides much better performance than scripting languages, such as VBScript. The Web Forms support to create powerful forms-based Web pages. You can use ASP.NET Web server controls to create interactive Web applications. With the help of Web server controls, you can easily create a Web application.

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Subject: .NET

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Q:

What does it mean if the null indicator has -1, 0, -2?

Answer

 -1 indicates the field is null


 0 indicates the field is not null


 -2 indicates the field is truncated

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