Part - 2 : Windows Administrator L1, Interview question & Answer for IIS

IIS

Virtual Directory:

A virtual directory is a directory that is not contained in the home directory but appears to client browsers as though it were.

What is ISAPI?                                        

Internet Server Application Programming Interface (ISAPI), is an API developed to provide the application developers with a powerful way to extend the functionality of Internet Information Server (IIS). Although ISAPI extensions by no means are limited to IIS, they are extensively used in conjunction with MS-IIS.

What is application pool?

Application Pools” that can house a single or multiple web sites. It provides a convenient way to administer a set of Web sites and applications and increase reliability,

What is a COM component?

Any VB6 DLL is a COM component, as is any Windows DLL or EXE that supports the COM interfaces.

How many types of authentication securities are there in IIS?

In IIS there are 4 types of authentication security - Basic, Anonymous, Digest & Integrated windows Authentication.

What is the Tombstone? What is the default tombstone life time? How to increase the tombstone life time?

The number of days before a deleted object is removed from the directory services. The default tombstone-lifetime of 60 days, Windows Server 2003 sp1 the new default tombstone-lifetime is 180 days.

You can check your tombstone-lifetime using the following command which comes with Windows Server 2003:

dsquery * "CN=Directory Service,CN=Windows NT,CN=Services,CN=Configuration,DC=yourdomain,DC=com" -scope base -attr tombstonelifetime

What is a session Object?

A Session Object holds information relevant to a particular user’s session.

How IIS can host multiple websites

To distinguish between websites, IIS looks at three attributes:

       The host header name

       The IP number

       The port number

What is a host header?

A host header is a string part of the request sent to the web server (it is in the HTTP header). This means that configuring IIS to use host headers is only one step in the approach to host multiple websites using host headers to distinguish between the websites. A configuration of the DNS server (usually means that you need to add an (A) record for the domain) is also required, so the client can find the web server.