CBSE Class 10 Computer Applications Internet Services and HTML Assignment Set 01

Answer: A website is a collection of related web pages under one domain name that presents information about a person, business or topic. A web portal is a special website that gathers information from many sources in one place and usually offers services such as search, e-mail, news and login-based personalised content (for example, a school or government portal).

Teacher's Note:
1. A portal is a gateway built from many services, while a website is a single set of linked pages.
2. Giving one example of each makes the difference clear.

Answer: (i) Information: .info
(ii) Network: .net
(iii) Educational: .edu (in India, .ac.in or .edu.in)
(iv) Organization: .org

Teacher's Note:
1. A domain extension (top-level domain) tells us the type or country of a website.
2. Learn the common ones such as .com, .gov, .mil and .in together.

Answer: (i) Blog: a website or web page where entries (posts) are published regularly, with the newest shown first.
(ii) Blogger: the person who writes and manages a blog.
(iii) Blogging: the activity of writing, publishing and updating posts on a blog.

Teacher's Note:
1. A blog is the page, a blogger is the person, and blogging is the activity.
2. Do not mix up the three terms in a differentiation question.

Answer: A protocol is a set of rules that decides how data is formatted, sent and received between computers on a network. Examples: HTTP (web pages), FTP (file transfer) and SMTP (sending e-mail). TCP/IP and POP3 are also correct.

Teacher's Note:
1. Without common protocols two computers could not understand each other.
2. Always write the full form of each protocol you name.

Answer: The <FONT> tag is used, with the attributes FACE, SIZE and COLOR.
Example: <FONT FACE="Arial" SIZE="5" COLOR="red">Welcome</FONT>. Only the text between the opening and closing tags is changed.

Teacher's Note:
1. The FONT tag is a container tag, so it needs a closing tag.
2. Its attributes are written inside the opening tag in quotes.

Answer: A comment is text written inside <!-- ... --> that the browser does not display. Comments are used to explain the code, to leave reminders for the programmer, and to temporarily hide a piece of code without deleting it.

Teacher's Note:
1. Comments make a long page easier to read and maintain.
2. The text inside a comment never appears in the browser window.

Answer: X<SUP>2</SUP> + Y<SUP>2</SUP>
The <SUP> tag raises the enclosed character above the line as a superscript.

Teacher's Note:
1. Use SUP for powers and SUB for chemical-formula style subscripts.
2. Both tags need a closing tag.

Answer: (i) URL: Uniform Resource Locator
(ii) HTTP: HyperText Transfer Protocol
(iii) DNS: Domain Name System
(iv) HTML: HyperText Markup Language

Teacher's Note:
1. These four terms appear in almost every unit of the chapter.
2. The DNS converts a domain name into an IP address.

Answer: <UL>
<LI>MS Office</LI>
<LI>SQL</LI>
<LI>Database Management System</LI>
</UL>

Teacher's Note:
1. UL creates an unordered (bulleted) list and each item goes inside an LI tag.
2. The default bullet is a disc, which the TYPE attribute can change.

Answer: Use the WIDTH and HEIGHT attributes of the <IMG> tag, for example <IMG SRC="photo.jpg" WIDTH="200" HEIGHT="150">. The values are in pixels (or a percentage of the available space).

Teacher's Note:
1. Setting only one of the two values keeps the proportion in most browsers.
2. Also give an ALT text for the image.

Answer: Nesting of lists means placing one list inside an item of another list, such as a bulleted list inside an ordered list. It is used to show sub-points under a main point.

Teacher's Note:
1. The inner list must be completed before the outer list item is closed.
2. Each list keeps its own opening and closing tags.

Answer: The TYPE attribute of the <OL> tag. For example, <OL TYPE="A"> gives A, B, C, TYPE="a" gives a, b, c, and TYPE="I" or "i" gives Roman numerals.

Teacher's Note:
1. The default type is the Arabic numeral 1.
2. The START attribute can set the number where the list begins.

Answer: HREF gives the destination (a page or a place on a page) to which the link points, for example <A HREF="#top">Go to top</A>. NAME creates a named anchor, i.e. a marked position that a link can jump to, for example <A NAME="top">Heading</A>.

Teacher's Note:
1. HREF is where you go and NAME is the place you land.
2. A link to an anchor uses the anchor name with a # sign.

Answer: Internal linking connects different sections of the same page (using a named anchor and #name) or pages of the same website. External linking connects to a page of another website using its full URL, for example <A HREF="http://www.example.com">.

Teacher's Note:
1. An internal link stays inside the same page or site.
2. An external link needs the complete address with the protocol.

Answer: In <TABLE>, ALIGN positions the whole table on the page (left, center or right). In <TR>, ALIGN sets the horizontal alignment of the contents of the cells of that row (left, center or right).

Teacher's Note:
1. The same attribute works at two different levels.
2. Table ALIGN moves the table and row ALIGN moves the cell contents.