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“IIS (Internet Information Services) Interview Questions and Answers will guide us now that Internet Information Services (IIS) is a web server application and set of feature extension modules created by Microsoft for use with Microsoft Windows. It is the worlds second most popular web server in terms of overall websites behind the industry leader Apache HTTP Server. Learn IIS or get preparation for a job in IIS with the help of this Internet Information Services (IIS) Interview Questions Answers”



80 IIS Questions And Answers

21⟩ Explain the role of IIS?

Visual studio having It own ASP.NET Engine which is capable enough to run Asp.net web application from visual studio. So we just click on Run button to start the application.

Now this is the scenarios of local environment. But If we want to host it on server from where all user can access the sites then IIS comes into the picture.

IIS provides a redesigned WWW architecture that can help you achieve better performance, reliability, scalability, and security for our Web sites. IIS can support following Protocol HTTP/HTTPS, FTP, FTPS, SMTP Etc. We need to host the site on IIS, when request comes from client it first hits the IIS Server, then the server passed it to ASP.NET worker process to execute. Then the response also passes to client via IIS itself.

Note only Hosting of Site we can create our FTP Server, SMTP Server using IIS itself.

There are different version of IIS available like 5.1, 6.0, 7.0 etc.

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22⟩ Define the different version on IIS that you have worked on?

Before answering this question you need to know what are the different IIS version is available in different OS. Below is the list of IIS version with different Operating system.

Windows Server 2008 - Windows Vista - Home Premium/ Ultimate - IIS 7.0

Windows Server 2003 - IIS 6.0

Windows XP Professional - IIS 5.1

Now based on your working experience you can say that you have worked on IIS 5.1 and 6.0 or only IIS 7. Etc.

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23⟩ What is application pool in IIS?

Before Giving the Definition: you can say like this, Concept of Application pool has from IIS 6.0.

Application pools are used to separate sets of IIS worker processes that share the same configuration and application boundaries. Application pools used to isolate our web application for better security, reliability, and availability and performance and keep running with out impacting each other . The worker process serves as the process boundary that separates each application pool so that when one worker process or application is having an issue or recycles, other applications or worker processes are not affected.

One Application Pool can have multiple worker process Also.

Main Point to Remember:

★ Isolation of Different Web Application

★ Individual worker process for different web application

★ More reliably web application

★ Better Performance

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26⟩ Define recycling of application pool?

Recycling Application pool means recycle the Worker process (w3wp.exe ) and the memory used for the web application.

There are two types of recycling related with Application pool

★ Recycling Worker Process - Predefined Settings

★ Recycling Worker Process - Based on Memory

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27⟩ Explain the main layers of IIS architecture?

IIS having mainly two layer Kernel Mode and User Mode.

Below are the subsection of both of them:

1) Kernel Mode

★ HTTP.SYS

2) User Mode

★ Web Admin Service

★ Virtual Directory

★ Application Pool

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28⟩ How to create web garden?

For creating web graden we need to go to Application Pool, then Right Click on Application Pool > Properties > Goto Performance Tab

In Web Garden Section, increase the number of worker process. By default it is 1.

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33⟩ Describe the role of Http.Sys in IIS?

HTTP.SYS is the kernel level components of IIS. All client request comes from client hit the HTTP.Sys of Kernel level. HTTP.SYS then makes a queue for each and every request for each and individual application pool based on the request.

Whenever we create any application pool IIS automatically registers the pool with HTTP.SYS to identify the particular during request processing.

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35⟩ Define the different security settings available in IIS?

Below are the commonly used IIS Security settings:

★ Anonymous

★ Integrated Windows Authentication

★ Digest Authentication

★ Passport Authentication

★ Basic Authentication

For Set security permission you need to go to Virtual Directory > Right Click > Properties > Directory Security

Click on Edit Button.

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36⟩ Fresh Top IIS Job Interview Questions

1.How to install our Web Application In IIS Web Server?

2.Can we run multiple websites with same port number and different IP address?

3.Whats the Hardware requirements for the IIS Server so that we can host a webpage?

4.How many times are working in IIS Server?

5.In IIS Version 6.0 Through application pool we can provide different -2 applications for the client.

Is it right?

If yes then how to provide the application to the client and what kind of application it can be?

6.What is App Pool and App Domain? What is the difference between the two in IIS?

7.what is the difference between IIS 5.1 and IIS 6 administration?

8.What is the proporties of application Pool in IIS?

9.What is presentation layer responsible for in the OSI model?

10.Does Windows Server 2003 support IPv6?

11.Can Windows Server 2003 function as a bridge?

12.What is the difference between the basic disk and dynamic disk?

13.What scripts ship with IIS 6.0?

14.What is the name of the user who connects to the Web site anonymously?

15.What secure authentication and encryption mechanisms are supported by IIS 6.0?

16.What is the relation between SSL and TLS?

17.What is the role of http.sys in IIS?

18.Where is ASP cache located on IIS 6.0?

19.For the document of size 1 MB, what size would you expect the index to be with Indexing Service?

20.What is a vector space query?

21.How to install our Web Application In IIS Web Server?

22.Can we run multiple websites with same port number and different IP address?

23.Whats the Hardware requirements for the IIS Server so that we can host a webpage?

24.How many times are working in IIS Server?

25.In IIS Version 6.0 Through application pool we can provide different -2 applications for the client.

Is it right?

If yes then how to provide the application to the client and what kind of application it can be?

26.What is App Pool and App Domain? What is the difference between the two in IIS?

27.what is the difference between IIS 5.1 and IIS 6 administration?

28.What is the proporties of application Pool in IIS?

29.What is presentation layer responsible for in the OSI model?

30.Does Windows Server 2003 support IPv6?

31.Can Windows Server 2003 function as a bridge?

32.What is the difference between the basic disk and dynamic disk?

33.What scripts ship with IIS 6.0?

34.What is the name of the user who connects to the Web site anonymously?

35.What secure authentication and encryption mechanisms are supported by IIS 6.0?

36.What is the relation between SSL and TLS?

37.What is the role of http.sys in IIS?

38.Where is ASP cache located on IIS 6.0?

39.For the document of size 1 MB, what size would you expect the index to be with Indexing Service?

40.What is a vector space query?

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37⟩ What are default IIs Services?

1. www services (Worldwide Web)

2. FTP services (File Transfer Protocol)

3. SMTP services (Simple Mail Transfer Protocol)

4. NNTP services (Network News Transfer Protocol)

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38⟩ Explain me What Is The Key Role Od Http.sys In IIS?

HTTPS.SYS key component in Kernal level.It process the queue which hit the client request for each Application Pool depend on request.While create any new Application Pool IIS will register the Application Pool with HTTP.SYS.

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40⟩ Please explain what is Application Pool in IIS?

Before Giving the Definition : you can say like this, Concept of Application pool has from IIS 6.0 .

Application pools are used to separate sets of IIS worker processes that share the same configuration and application boundaries. Application pools used to isolate our web application for better security, reliability, and availability and performance and keep running with out impacting each other . The worker process serves as the process boundary that separates each application pool so that when one worker process or application is having an issue or recycles, other applications or worker processes are not affected.

One Application Pool can have multiple worker process Also.

Main Point to Remember:

1. Isolation of Different Web Application

2. Individual worker process for different web application

3. More reliably web application

4. Better Performance

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