Application Oriented Problems
Q1. Read the following paragraph carefully. Find six network and communication related abbreviations and give their expanded form along with a single-line definition for each of them:
The RBI is planning to expand its connectivity with all major banks of India. The plan includes providing TCP connectivity through HTTP for easy access points and seeks help from some ISPs to join hands in this venture. In addition, there is a plan to set up IIS and SMTP servers. Some banks will go for the ADSL line while others will use leased line connectivity to access these services. The RBI is also taking help of IIT professors in this venture.
Ans. The following are the six network-related abbreviations along with a brief definition for each:
- Transmission Control Protocol (TCP): Refers to a protocol developed for the Internet to get information from one network device by another.
- Hypertext Transfer Protocol (HTTP): Refers to a protocol that uses TCP to transfer hypertext requests and information between servers and browsers.
- Internet Service Provider (ISP): Refers to an organization that provides access to the Internet through various connectivity modes (such as dial-up modem and cables).
- Internet information Server (IIS): Refers to Microsoft’s proprietary Web server software, and is included with their Windows NT-based operating systems. It also provides the FTP functioning and an easy –to-use management console for administrators.
- Simple Mail Transfer protocol (SMTP): Refers is an Internet standard for electronic mail (e-mail) transmission across IP networks.
- Asymmetric Digital Subscribers Line (ADSL): Refers to one form of the Digital Subscribers Line technology, a data communications technology that enables faster data transmission over a copper telephone lone than conventional voice band modems.
Q15. What is domain extension?
Ans. The fourth component of a URL is domain extension which specifies the type of website. The domain extension uses standard codes to represent the type of website. For example, com is used to specify that the website is created for commercial purposes. In the URL www.google.com the domain extension indicates that the website is a commercial website.
Q14. Write a short note on the HTTP.
Ans. HTTP is a protocol that is used to access Web pages on a Web server over the Internet. This protocol was developed by World Wide Web in 1990. HTTP works as a foundation for WWW to enable exchange of information on the Internet.
HTTP allows us to access hypertext documents on WWW .Since WWW allows us to access or use multimedia files on the Internet and the hypertext support multimedia, the HTTP protocol generally works in combination with WWW.
Q13. Differentiate between the Internet and Intranet?
Ans. The Internet is a collection of millions of computers connected together across countries and continents, forming a worldwide network. This global network allows easy access and transfer of data and communication among people throughout the world.
The intranet is another type of network. It is generally used to link different computers in an organization. The term intranet is a combination of two words, intra and net. Intra means inside or within; therefore, an intranet implies a network inside something (such as an organization). Unlike the Internet, an intranet is limited to a small area or organization, which means that the Web pages or other resources on an intranet are accessible outside the intended organization.
Q12. Define the following terms:
- Gateway: refers to a device that helps connect networks that are using different protocols.
- Protocol: refers to a set of rules that computers use to communicate with one another over a network, such as the Internet.
- Internet: defines as a worldwide system of computers connected through a network for sharing information.
- Surfing: means moving from one website to the other using a Web browser.
Q11. What is the InterNIC?
Ans. InterNIC is one of the volunteer organizations that help manage and administer the Internet. It is responsible for providing various registration services to the Internet community.
Q10. What are the disadvantages of the internet?
Ans. The following are some disadvantages of using the Internet:
- Serves as a major source of viruses.
- Documents published online sometimes contain confidential data that can be tampered with by unauthorized users.
- Difficult to establish the accuracy of information on the Internet.
- Overexposure or using the Internet in excess can lead to a sense of alienation and loss of one’s social circle.