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Hypertext Markup Language (HTML) is used to design web pages.
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Simple Mail Transfer Protocol (SMTP) is an email protocol that usually has some text and may optionally
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include text or multimedia attachments. Also, an email may be sent to multiple recipients.
Post Office Protocol Version 3 (POP3) is an email protocol for receiving emails from a remote server and
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sending them to a local email client.
Internet Relay Chat (IRC) is the most commonly used text-based chat protocol. It allows two or more users to
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form a (logical) chat room for communicating with each other.
Voice over Internet Protocol (VoIP) allows us to make calls using an Internet connection.
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Hypertext Transfer Protocol (HTTP) enables smooth transmission of hypermedia documents, such as HTML
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documents.
Hypertext Transfer Protocol Secure (HTTPS) ensures secure communication over the Internet. It enables data
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to be transferred in an encrypted format.
The Hypertext Transfer Protocol Secure (HTTPS) port number is 443 for secure pages.
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The Hypertext Transfer Protocol (HTTP) port number is 80 for unsecured pages.
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The Domain Name System (DNS) maps domain names to numerical IP addresses.
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Web hosting is a service for hosting websites for users (clients) on the Internet.
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Solved Exercise
A. Multiple Choice Questions
1. Which symbol is used to separate the domain name and the resource description in a URL?
a. . b. / c. - d. \
2. Which of the following is not a part of a URL?
a. Network Protocol Name b. Name of ISP
c. Domain Name d. Location and name of file/resource
3. In URL, https://www.cbse.gov.in/cbsenew/cbse.html, which is the domain name?
a. www.cbse.gov.in b. https c. /cbse.html d. cbsenew/cbse.html
4. Which of the following is a correct sequence of HTML tags for creating a web page?
a. <HEAD>, <TITLE>,< HTML>,<BODY> b. < HTML>,<BODY>,<HEAD>, <TITLE>
c. < HTML>,<HEAD>,<TITLE>,<BODY> d. < HTML>,<TITLE>,<HEAD>,<BODY>
B. State whether the following statements are True or False:
1. The web page that counts the number of visitors is an example of a static web page. _________
2. An email can be sent to multiple recipients. _________
3. Web Hosting allows the websites to be viewed on the Internet. _________
4. Web browsers allow users to access and navigate the World Wide Web. _________
C. Fill in the blanks.
1. ___________ allows us to make calls using an Internet connection.
2. ___________ is a collection of documents and resources on the Internet.
3. Resources on the Internet are identified using unique ___________.
D. Answer the following questions:
1. Expand the following:
VoIP, HTML
Ans. VoIP - Voice Over Internet Protocol
HTML - Hyper Text Markup Language
262 Touchpad Informatics Practices-XII

