Let's start by getting a summary of both.

Physical route
This is the path that IIS actually finds the file.

The virtual route
When a file is pointed to from outside the IIS application folder, this is the logical route to access it.
Let's use a virtual directory in the IIS default website to display this image from the hard drive "E:."

Add Virtual Directory

Here, we need to provide an alias for the physical path.

Physical Path - E:\Files
Virtual Path - http://localhost/Files/
File Name - image_60140ec0-ce46-4dbf-a14f-4210eab7f42c.png
Full Path - http://localhost/Files/image_60140ec0-ce46-4dbf-a14f-4210eab7f42c.png

Let’s enable the Directory Browsing.

By default, this is disabled for security reasons.

Here, we can see the files of the folder that is in E Drive. Click on the file name. It will load the file which is in the outer part of IIS application folder. Thanks, hope this will help.

We can parse many kinds of logs with the aid of Log Parser Studio. The primary focus of this course will be on parsing IIS logs. There are two types of Log Parser software: one that just uses the command prompt and the other that supports a graphical user interface.

Installation
Kindly find the link for Log Parser Studio.
Below is the sample query for Log Parser with GUI to get the output from IIS logs for a URL and other data like [MAX, MIN, AVG] – Response Time in mili seconds and hits.
SELECT cs-uri-stem as URL,
MAX(time-taken) As Max,
MIN(time-taken) As Min,
Avg(time-taken) As Average,
Count(1) as Hits
FROM '[LOGFILEPATH]'
GROUP BY URL
ORDER BY Average DESC

Below is the sample query to run in Log Parser with the command prompt version.
Logparser -i: iisw3c “ SELECT cs-uri-stem as URL,
MAX(time-taken) As Max,
MIN(time-taken) As Min,
Avg(time-taken) As Average,
Count(1) as Hits from D:\test.log GROUP By URL ORDER BY Average DESC TO D:\result.csv” –o : csv

Usage details Log parser studio
The landing screen of Log Parser Studio is given below.

As we are interested in parsing IIS logs, so select IIS-Top25 slow URLs.

The query with all the details will be shown to the user.

Now, we need to choose the IIS logs file. Click the Choose log files icon.

The dialog box with the options will be shown, where we have to select the individual log files or the folder. Now, we need to click the icon to execute an active query.

Below is the screenshot of Log Parser Studio with the results. The data for Max, Min, and Average refers to Response Time in mili seconds. We can copy data or export the data, as required.

You may host and manage websites and web applications with the aid of Internet Information Services (IIS), a web server function in Windows Server. It is a solid option for handling and providing web content because it is compatible with several web technologies and offers features for growth, performance, and security.

Internet Information Services (IIS): What is it?
Microsoft's Internet Information Services (IIS) web server software is compatible with Windows Server. Websites, web apps, and other online services can be hosted and managed with its assistance. IIS is adaptable to diverse kinds of web content since it works with a variety of web technologies, including HTML, ASP.NET, and PHP. It provides security, speed, and growth capabilities to help you efficiently set up and manage your web environment. You can efficiently manage applications, provide web pages, and manage internet traffic with IIS.

Internet Information Services (IIS) deployment

Step 1. Open the Server Manager.
Step 2. Click on "Manage".
Step 3. Then select "Add Roles and Features".

Step 4. On the "Before you begin" screen, click "Next."

Step 5. Choose "Role-based or feature-based installation"
Step 6. And then click "Next."

Step 7. Choose the appropriate server from the server pool.
Step 8. And then click "Next".

Step 9. Select the server role "Web Server (IIS)."
Step 10. If a box appears asking to add required features, click "Add Features."
Step 11. And then click "Next."

Step 12. Select the features screen, you can choose extra features if you need them, and then Click "Next".

Step 13. Web Server Role (IIS)" screen, review the information about IIS and click "Next".

Step 14. Select role services, anything you want to install, and Make sure to select important services.

Step 15. Then Click "Next"

When setting up the IIS (Internet Information Services) web server role, there are some important services you need to choose to make sure the web server works properly.

Web Server: Common HTTP Features
    Static Content
    Default Document
    Directory Browsing
    HTTP Errors
    HTTP Redirection (if needed)
Application Development
    ASP.NET (for .NET applications)
    .NET Extensibility
    ISAPI Extensions
    ISAPI Filters
Management Tools
    IIS Management Console
    IIS Management Scripts and Tools
    Management Service (for remote management)
Performance
    Static Content Compression
    Dynamic Content Compression
Security
    Request Filtering
    Windows Authentication (if needed)
    Basic Authentication (if needed)
    URL Authorization

Step 16. Review and click "Install".

Step 17. After installation is finished, click "Close".

Verify the IIS server role Installation

• open a web browser and enter http://localhost.
• confirming that IIS is running.

A default document is the file that a web server displays when you browse to a folder without specifying a file name.

This is syntax:

<system.webServer>
    <defaultDocument>
      <files>
        <clear />
        <add value="Path of your Page" />
      </files>
    </defaultDocument>
</system.webServer>

Using IIS 7 you can set default document in Web.Config in easy way. Suppose i have to set CommingSoon.aspx page as default page then we should do like this in system.webserver tag.
<configuration>
<system.webServer>
<defaultDocument>
<files>
<add value="CommingSoon.aspx" />
</files>
</defaultDocument>
</system.webServer>
</configuration>

When IIS gets this new default document it adds with parent or global list of default documents.

To remove an individual default document from the list.
<files> 
<remove value="CommingSoon.aspx" /> 
</files>

To remove a default document entry from the inherited or parent list of default documents, do something like this: 
<files> 
<clear/> 
<add value="CommingSoon.aspx" /> 
</files>