Final answer:
Server processes are programs that run on a server and handle specific tasks or services. The four server processes mentioned are Apache, Tomcat, Nginx, and IIS, each serving different purposes. Apache is used for hosting websites, Tomcat for database management, Nginx for load balancing, and IIS for email services.
Step-by-step explanation:
Server processes are programs that run on a server and handle specific tasks or services. In this case, we have four different server processes: Apache, Tomcat, Nginx, and IIS.
- Apache: Apache is used for hosting websites. It is an open-source server process, meaning it is freely available for anyone to use. It is not licensed.
- Tomcat: Tomcat is used for database management and is Java-based. It is licensed, meaning there may be certain usage restrictions or costs associated with it.
- Nginx: Nginx is used for load balancing, which helps distribute network traffic across multiple servers to improve performance. It is known for its high performance and is not licensed.
- IIS: IIS (Internet Information Services) is used for email services and is a Microsoft product. It is licensed, so there may be costs or usage restrictions.