What is Server Software ?
Server Software :-
A web server commonly known as HTTP server or application server is a program that serves content using the HTTP protocol. This content is generally in the form of HTML documents, images, and other web resources, but can include any type of file. The content served by the web server can be pre-existing (static content) or generated on the fly (dynamic content).
- Apache web server – the HTTP web server: Apache Software Foundation developed the free and open source web server and can be installed and made to work on almost all operating systems including Linux, Unix, Windows, FreeBSD, Mac OS X and more. Almost, 60% of the web server machines run the Apache web server.
2. Apache Tomcat: Apache Tomcat is free and open source web server that can run on different operating systems like Linux, Unix, Windows, Mac OS X, Free BSD. It was developed to support servlets and JSP scripts. It can serve as a standalone server.
3. Lighttpd: Lighttpd is a free web server distributed with the FreeBSD operating system. This open source web server is fast, secure and consumes much less CPU power. Lighttpd can also run on Windows, Mac OS X, Linux and Solaris operating systems.
4. Jigsaw: Jigsaw (W3C’s Server) is introduced by the World Wide Web Consortium. It is open source and free and can run on various platforms like Linux, Unix, Windows, Mac OS X Free BSD etc. Jigsaw is written in Java thus can run CGI scripts and PHP programs.
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Important Point :-
❖ The World Wide Web (WWW) is an internet based service, which uses common set of rules known as Protocols, to distribute documents across the Internet in a standard way.
❖ The Internet is a massive network of networks. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet.
❖ Search engines are the programs which are needed to extract the information from the internet.
❖ A search engine works in the following order: Web crawling, Indexing, Searching
❖ A web server commonly known as HTTP server or application server is a program that serves content using the HTTP protocol.
❖ A Web page can contain an article, or a single paragraph, photographs, and it is usually a combination of text and graphics.
❖ A browser is a software that lets you view web pages, graphics and the online content.
❖ The Secure Sockets Layer (SSL) is a protocol, uses Hypertext Transfer Protocol (HTTP) and Transport Control Protocol (TCP) for managing the security of a message transmission on the Internet.
❖ A blog is a web site like any other, but it is intended to offer personal opinions of people on their hobbies, interests, commentaries, photo blogs, etc.
❖ URL’s, or ‘uniform resource locators’, are the web browser addresses of internet pages and files. It is the way to locate a file or document on the Internet.
There are two types of URL: Absolute and Relative.
A protocol is a set of rules that governs the communication between computers on a network.
Basic internet Computer Questions and Answers
Q: What is the internet?
(a) a single network
(b) a vast collection of different networks
(c) interconnection of local area networks
(d) none of the mentioned
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Q: What is an ‘intranet’?
(a) Internal internet is used to transfer information internally
(b) Internal internet is used to transfer information to the outside company.
(c) Internal network designed to serve the internal formational needs of a single organization.
(d) Internal network designed to transfer information between two organizations
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Q: __ servers store and manage files for network users.
(a) Authentication
(b) Main
(c) Web
(d) File
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Q: ISP stands for
(a) Internet Security Protocol
(b) Intelligent Service Package
(c) Internet Service Provider
(d) Intelligent Service Provider
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Q: Which one of the following protocols is not used on the internet?
(a) HTTP
(b) DHCP
(c) DNS
(d) none of the mentioned
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Q: What does the internet term “thread” refer to?
(a) A series of linked messages
(b) A self-replicating virus
(c) A category of browser
(d) A common fault in display devices
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Q: What’s the name of the program or service that lets you view e-mail messages ?
(a) Web browser
(b) E-mail clients
(c) E-mail id
(d) Internet
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Q: When sending an e-mail, the ______ line describes the contents of the message?
(a) to
(b) subject
(c) contents
(d) CC
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Q: http stands for
(a) hyper text transfer protocol
(b) hypertet transmission protocol
(c) high transfer transport protocol
(d) hyper transfer text protocol
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Q: What does SMTP in an SMTP server stand for ?
(a) Simple Mail Transfer Protocol
(b) Serve Message Text Process
(c) Short Messaging Text Process
(d) Short Messaging Transfer Protocol
Answer ⇒ ??