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2. Expand IRC. Also, state its functions.
Ans. IRC stands for Internet Relay Chat. It allows two or more users to form a (logical) chat room for communicating with each
other.
3. Name any one application that uses VoIP for communication over the Internet.
Ans. Skype
4. List three distinctive features of IP.
Ans. The three distinctive features of IP are:
• Internet Protocol (IP) is a connectionless protocol
• It does not generate feedback or acknowledgement.
5. Why is it advised to use HTTPS instead of HTTP for data communication over the Internet?
Ans. Hypertext Transfer Protocol Secure (HTTPS) protocol ensures secure communication over the Internet. It enables data to be
transferred in an encrypted format.
6. Give the names of any two web browsers.
Ans. Google Chrome, Mozilla Firefox
7. Differentiate between dynamic webpage and static webpage.
Ans. Static Webpage Dynamic Webpage
In static web pages, information will remain the same In dynamic web pages, the content of pages may vary
until someone changes it manually. over time and may also be different for different visitors.
A static web page takes less time to load than a Dynamic web page takes more time to load.
dynamic web page.
8. Describe the structure of the URL.
Ans. The uniform resource locator (URL) has the following structure:
protocol://domain:port/path?query_string#fragment_id
protocol: such as HTTP, HTTPS
domain: domain name of the server
port: Typically 443 for secure pages and 80 for the unsecured ones.
path: the location of the resource
query string (optional): any related term searched on the URL.
For example, https://sia.mic.gov.in/CBSE
9. Differentiate between a URL and a domain name.
Ans. URL Domain Name
1. URL is known as Uniform Resource Locator. It is a 1. The domain name is the textual representation of an IP
string that represents the complete web address address which is relatively more user friendly.
of any web page.
2. Example: https://www.google.com/ 2. Example: google.com
10. What is Web Hosting?
Ans. Web hosting is posting or uploading a website or a web page on the Internet.
11. What do you mean by shared web hosting and free web hosting?
Ans. In shared hosting, a single server hosts several domains corresponding to different organizations. Some servers use shared
hosting to provide free space for hosting a few web pages. This is called free web hosting.
Computer Networks: Internet, Website, and Web Browsers 263

