What is a web server?
A web server is a powerful computer that contains information as a website. A server is usually attached to the Internet and provides the requested information to the client. Each time a client request arrives, the corresponding document is sent to the client.
Explain the features of the web server.
Features of a Web Server
- A web server can support increased data storage, making it capable of hosting multiple websites.
- It is easy to configure log file settings, which allows storing all log files. Log files are essential for analyzing web traffic.
- The web server also helps to control bandwidth, regulate network traffic and avoid downtime during periods of high web traffic.
- It is also easy to create FTP websites, which facilitates the transfer of large files from one site to another.
- Website configuration and directory security can be easily set up, as well as virtual directories that can be mapped to physical directories.
Types of Web Servers
Several web server options are available, each with its strengths and features. Let’s explore some popular choices:
Apache HTTP Server
Apache HTTP Server, often called simply Apache, is one of the most widely used web servers. It’s renowned for its stability, flexibility, and extensive module ecosystem. Apache supports multiple operating systems, including Linux, Windows, and macOS, making it a versatile choice for hosting websites.
Nginx
Nginx (pronounced “engine-x”) is a lightweight and high-performance web server known for its efficiency in handling concurrent connections. It excels in serving static content and is
commonly used as a reverse proxy or load balancer. Nginx is renowned for taking high-traffic loads while consuming minimal system resources.
Microsoft IIS
Microsoft Internet Information Services (IIS) is a web server designed specifically for Windows servers. It seamlessly integrates with other Microsoft technologies and supports ASP.NET and Windows-based frameworks. IIS also includes advanced security features and robust management tools.
Lighttpd
Lighttpd (pronounced “lighty”) is a lightweight web server known for its speed and low memory footprint. It’s often used in resource-constrained environments and for serving static content efficiently. Lighttpd is highly modular and can handle many concurrent connections with minimal impact on system resources.
Differentiate between a web server and a web browser.
| Web Server | Web Browser | |
| Functionality | A web server is a software application that runs on a computer and is responsible for storing and delivering web content, such as HTML files, images, videos, and other files, to users’ web browsers. | A web browser is a software application that runs on a user’s computer or mobile device and is responsible for interpreting and displaying web content to the user. |
| Requests | When a user types a web address or URL into their web browser, the request is sent to the web server, which processes it and sends back the appropriate response. | The web browser then interprets and displays the content to the user. In other words, the web browser requests the web content from the web server. |
| Location | A web server is typically located in a data center or hosting facility, where it is connected to the internet through a high-speed network connection. It can be accessed from anywhere in the world through the internet. | A web browser is installed on a user’s local computer or mobile device and is used to access web content online. |
| Configuration | Web servers require configuration to deliver web content correctly and securely. This includes configuring SSL certificates, firewalls, load balancing, and caching. | Web browsers also have configuration options generally related to user preferences and settings, such as the default search engine or home page. |
| User Interaction | A web server does not provide any user interface or allow users to interact directly with the web content it stores. It simply responds to requests from web browsers and sends back the appropriate content. | A web browser provides a user interface that allows users to interact with web content, submit forms, and navigate between web pages. |
| Examples | Some examples of web servers include Apache, Nginx, and Microsoft IIS. | Some examples of web browsers include Google Chrome, Mozilla Firefox, and Microsoft Edge. |
Write a short note on VOIP and video conferencing.
VOIP(Voice Over IP):- This Internet service is also known as Internet telephony or (VOIP). It enables the user to have voice communications and multimedia sessions online. Thus it allows the user to have video chat via the Internet at a low cost compared to Public Switched Telephone Networks (PSTN). Some examples of Internet Telephony are Skype and Google Talk.
Video conferencing is a powerful tool for businesses of all sizes. It allows remote meetings, collaboration, and communication between teams, clients, and partners. It is a cost-effective way to bridge the gap between physical and virtual meetings, allowing for greater flexibility and convenience.
