Microsoft Internet Information Server IIS Application Pools & Worker Processes

Question 1

What is the default identity used by an IIS application pool in IIS 7.5 and later?

Accepted Answer

ApplicationPoolIdentity

Answer

Starting with IIS 7.5, the default identity for application pools is ApplicationPoolIdentity, which creates a unique virtual account per pool with minimal privileges.

Question 2

What is the primary role of the w3wp.exe process in IIS?

Accepted Answer

To host and execute web applications within an application pool

Answer

w3wp.exe is the IIS worker process that hosts web applications and executes HTTP requests within the boundaries of an application pool.

Question 3

Which application pool recycling trigger causes the worker process to restart based on memory consumption?

Accepted Answer

Virtual memory limit

Answer

The virtual memory limit setting causes IIS to recycle the worker process when it exceeds a specified amount of virtual memory allocation.

Question 4

What is a 'Web Garden' configuration in IIS?

Accepted Answer

An application pool configured to use multiple worker processes on a single server

Answer

A Web Garden is an application pool configured with more than one worker process, distributing request load across multiple w3wp.exe instances on a single server.

Question 5

In IIS application pools, what does 'pipeline mode' determine?

Accepted Answer

How requests are processed — either Integrated or Classic mode

Answer

Pipeline mode determines how IIS processes requests: Integrated mode merges the IIS and ASP.NET pipelines, while Classic mode processes them separately via ISAPI.

Microsoft Internet Information Server Practice Test

Microsoft Internet Information Server Practice Test

Microsoft Internet Information Server IIS Application Pools & Worker Processes