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

Network Service

Answer

Local System

Answer

Local Service

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

To manage DNS resolution for incoming web requests

Answer

To handle SSL certificate validation for HTTPS sites

Answer

To manage IIS configuration and metabase backups

Question 3

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

Accepted Answer

Virtual memory limit

Answer

Request queue limit

Answer

Connection timeout

Answer

Idle timeout

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 group of IIS servers in a network load-balanced cluster

Answer

A virtual directory structure organizing web content by topic

Answer

A security zone that isolates trusted web applications from public ones

Question 5

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

Accepted Answer

How requests are processed — either Integrated or Classic mode

Answer

The network pipeline used for routing requests between servers

Answer

The SSL/TLS pipeline used for encrypting secure connections

Answer

The sequence of HTTP compression modules applied to responses

Question 6

What action does IIS take when an application pool's idle timeout period expires?

Accepted Answer

The worker process is shut down to free server resources

Answer

The application pool is permanently deleted from IIS configuration

Answer

The worker process is recycled and restarted immediately

Answer

The application pool is suspended but its configuration is preserved in memory

Question 7

Which IIS feature allows an old worker process to continue serving requests while a new one initializes during recycling?

Accepted Answer

Overlapped recycling

Answer

Always Running startup mode

Answer

Rapid Fail Protection

Answer

Zero-downtime restart