|Table of contents|
|Section - A|
|Section - B|
|Section - C|
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Read the following instructions very carefully and strictly follow them:
Q.1. Write suitable HTML Code to Embed audio and video in a webpage.
HTML Code for Embedding Video : <video controls><source src="https://edurev.gumlet.io/ideoFile.mp4”></video>
HTML Code for Embedding Audio : <audio controls><source src="https://edurev.gumlet.io/udioFile.mp3”></Audio>
Q.2. What do you understand by the term URL? How is it different from an email address?
What do you understand by a newsgroup? How is it different from a blog?
URL stands for Uniform Resource Locator. It is basically a web address that identifies a resource on the internet. An email address is an account on a mail server. The main difference is that an email address contains an ‘@’ sign whereas a URL never has it. An email address does not start with a www.
A newsgroup is an Internet-based discussion group. It is organized around a particular topic, eg cyber safety. People can post messages on the group regarding the topic. Anyone can join a discussion group A blog is more like a website where an individual or group of people write about anything that interests them eg, sports, culture etc. It is usually owned by an individual and we can only post comments on a blog if it is allowed to do so.
Q.3. What is a Hypertext link? Give the name and the syntax for the HTML tag which is used for creating a Hypertext Link.
Hyperlink allows us to link HTML elements (text and/or image) to another document or new section within the current document. Name : anchor tag, Syntax <a href=”Link Address”>Hyperlink Text</a>
Q.4. Rohit, a student of Class X, wants to represent a table in webpage but he is unaware about the table tags. Explain him the role of <tr> and <td> tag. Write HTML code of a table and show the use of <tr> and <td> tag.
<tr> : defines table row.
<td> : defines table data/cell.
Q.5. What do you mean by first generation? Explan.
1G (First Generation) was introduced in 1980 and was based on narrow band analog cellular technology. It used circuit switching and only voice calls were available. It used radio waves for transmission. 1G used CDMA (Code Division Multiple Access). Each user was allocated a unique code sequence. The sender encoded the signal using the given code. The receiver also had the unique code and used it to decode the data.
Q.6. What precaution must be taken with regard to making payments while shopping online?
(i) Share payment information only with known or reputable vendors.
(ii) Before entering any personal or payment information, make sure that the URL should start with https.
(iii) Look for a small lock icon in web browser.
(iv) Avoid storing information.
(v) Make use of popular and trusted payment portals only.
Q.7. How does WWW work?
Differentiate between SSH and Telnet.
The World Wide Web (WWW) is a network of online content that is formatted in HTML and accessed via HTTP. The term refers to all the interlinked HTML pages that can be accessed over the Internet. The WWW system is based on the client/severs architecture. A web client sends request for information to any web server. This is a program upon receipt of which the server sends the document requested to the requesting client.
Typically, the client program (browser) runs on a separate machine from that of the server. The server takes care of all the issues related to document storage, whereas the task of presenting the information to the user is left to the client program.
The protocol that web clients and servers use to communicate with each other is called the Hypertext Transfer Protocol (HTTP). All web clients and servers must use HTTP in order to send/receive hypermedia documents. For this reason, web servers are often called HTTP servers.
(i) SSH offers security mechanisms that protect the users against anyone with malicious intent while Telnet has no security measures.
(ii) SSH uses encryptions to make it harder for the other person to sniff the password and other relevant information while in Telnet, the data is encrypted in plain text, including passwords and can be easily sniffed by others.
(iii) SSH uses public key to authenticate the source of the data while Telnet does not use any authentication.
(iv) SSH adds a bit more overhead to the bandwidth compared to Telnet.
Q.8. Read the case study given below and attempt any 4 sub-questions (out of 5).
World Wide Web (WWW) or simply web is a set of programs, standards and protocols that allows the multimedia and hypertext files to be created, displayed and linked on the Internet. The World Wide Web was invented by British scientist Tim Berners-Lee in 1989 while working at CERN. It became publicly available on Internet for the first time. The Internet is the physical network of computers all over the world. The World Wide Web is a virtual network of web sites connected by hyperlinks (or “links”). Websites are stored on servers on the internet, so, the World Wide Web is a part of the Internet. In 1969, the US Department of Defense approved a project named ARPANET. In 1970, NSF created a common network called CSNET. A speedier network NSFnet was built. In 1995, a new name was given to the collection of all networks and was called Internet.
(i) World Wide Web (WWW) is a set of programs, standards and protocols that allows the multimedia and hypertext files to be created, displayed and linked on the _______.
(ii) ARPANET stands for _______.
(iii) The World Wide Web was invented in the year _______.
(iv) The World Wide Web is a virtual network of web sites connected by _______.
(v) In which year, NSF created a common network called CSNET?
(ii) ARPANET stands for Advanced Research Projects Agency Network
(iii) The World Wide Web was invented in the year 1989.
(iv) The World Wide Web is a virtual network of web sites connected by hyperlinks.
(v) In 1970, NSF created a common network called CSNET.
Q.9. Write the HTML code to design the web page as shown below, considering the specifications as given below. Students can write code for any 4 specifications out of the given 5 specifications.
Specification-1: The HTML code structure should be proper. The heading text “Smacking Lollies’ should be in Comic Sans font and of red color.
Specification-2: The first two words of the paragraph should be underlined and in italics.
Specification-3: Title of the page should be “Candy World”.
Specification-4: Image should be used in the page is ice.jpg
Specification-5: The bulleted list contains links as specified below:
(i) The text West Delhi is a link to the web page “west.html”
(ii) The text South Delhi is a link to the web page ”south.html”
<TITLE> Candy World</TITLE>
<FONT FACE = “Comic Sans” color =”red”>Smacking Lollies</FONT>
<I><U>Smacking Lollies</U></I> is a new chain of stores selling variety of candies and mouth
The following is a list of major outlets of Smacking Lollies:
<LI><A href=”west.html”>West Delhi</A>-Janak Puri and Rajouri Garden
</LI> <LI><A href=”south.html”>South Delhi</A>-South Extension and Vasant Kunj</ LI>
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