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IIS Interview Questions and Answers

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Apache vs IIS

Ques 16. Explain the concept of Reverse Proxy in IIS.

A Reverse Proxy in IIS forwards client requests to another server, acting as an intermediary. It is often used for load balancing, caching, and enhancing security.

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Ques 17. What is the purpose of the IIS ARR (Application Request Routing) module?

ARR is a module that enables IIS to act as a load balancer. It can distribute incoming HTTP requests across multiple servers to achieve better performance and fault tolerance.

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Ques 18. How can you monitor the performance of IIS?

Performance monitoring in IIS can be done using tools like Performance Monitor, IIS Manager, and third-party monitoring solutions. Key metrics include CPU usage, memory usage, and request/response times.

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Ques 19. Explain the purpose of the IIS URL Rewrite module.

URL Rewrite allows administrators to define rules for rewriting or redirecting URLs. It is often used for search engine optimization (SEO) or to create user-friendly URLs.

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Ques 20. What is FastCGI and how is it related to IIS?

FastCGI (Fast Common Gateway Interface) is a protocol for interfacing web servers with external applications. In IIS, FastCGI can be used to improve the performance of PHP and other non-native applications.

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