Define the following web related terms: Web browser, Hyperlink ,Hypertext document 
i) Web browser 
ii) Hyperlink 
iii) Hypertext document 
b) List six activities performed on the web 
c) An institution has ten stand alone computers
i) Suggest with reasons the most appropriate topology required to inter-connect the computers. 
ii) State the necessary steps required to connect the computers to the internet. 
d) Below is an email address:
Name the parts labeled:

• A
• B
• C

a) Define the following web related terms:
i) Web browser
A browser is an application program that provides a way to look at and interact with all the information on the World Wide Web. 
ii)Hyperlink
This is the clickable link in text or graphics on a Web page that takes you to another place on the same page, another page, or whole other site. 
iii) Hypertext document
A document usually web document (file) where the user interacts with the whole document using hyperlinks
b) List six activities performed on the web

•  Browsing for information
•  Communication via email and chat groups
•  Electronic commerce.
•  Advertising of goods and services.
•  Transfer of information thro' FTP

c) An institution has ten stand alone computers.
i) Suggest with reasons the most appropriate topology required to inter-connect the computers.
a) Bus
Reason: Easy to set up, Low cost in terms of cabling QR
b)Star
Reason: 
Speed of data transmission is high, Easy to troubleshoot via central hub or switch
ii) State the necessary steps required to connect the computers to the Internet.

•  Connect server to modem (router) and telephone/or use satellite dish/or radio
•  Get an ISP to configure the Internet protocol
•  Configure the rest of the computers to Internet access through a peer-to-peer configuration or a client-server configuration.

d) Below is an email address:
ggitau @moest. edu.ke
Name the parts labeled: 

• i)The local-part of the address/username
• ii)host name domain-part
• iii)generic (organizational) top level domain 
• iv)country code top level domain

​i) Name the network topologies labeled a, B, C and D. 
ii) Explain what happens if server X in topology A fails. 
iii) List two problems associated with network topology B. 
iv) List two disadvantages associated with network topology D.
b) Differentiate between Interment and World Wide Web: 
c) Describe the following network services and identify their applications.
i) Voice mail 
ii) Video conferencing

ANSWERS
i) Name the network topologies labeled A, B, C and
A  Tree/Hierarchy
B Ring 
C Bus/Multi drop 
D Star
ii) Explain what happens if server X in topology A fails. 
The terminal connected to X will be affected/stop communicating with the ret of the network
 iii) List two problems associated with network topology B. 
Difficult to trouble shoot "- Failure of one terminal results in network breakdown
Extra cost of extra NIC card.
iv) List two disadvantages associated with network topology D. 
Failure of central device/server results I total collapse of network
Extra cost of cabling as each terminal must be cabled separately to the hub.
b) Differentiate between Internet and World Wide Web. 
The Internet is a massive network of networks, a networking infrastructure. It connects millions of computers together globally, forming a network in which any computer can communicate with any other computer as long as they are both connected to the Internet. Information that travels over the Internet does so via a variety of languages known as protocols.
The World Wide Web, or simply Web, is a way of accessing information over the medium of the Internet It is an information-sharing model that is built on top of the Internet The Web uses the HTTP protocol, only one of the languages spoken over the Internet, to transmit data. Web services, which use IfTTP to allow applications to communicate in order to exchange business logic, use the Web to share information. The Web also utilizes browsers, such as Internet Explorer or Netscape, to access Web documents called Web pages that are linked to each other via hyperlinks. Web documents also contain graphics, sounds, text and video.
c) Describe the following network services and identify their  applications.
i) Voice mail                                                                  
Voicemail (or voice matt, voicemail or VMS, sometimes called message bank) is a centralized system of managing telephone messages for a large group of people. In its simplest form it mimics the functions of an answering machine, uses a standard telephone handset for the user interface, and uses a centralized, computerized system rather than equipment at the individual telephone.
Voicemail systems are much more sophisticated than answering machines in that they can:
 Answer many phones at the same time
 Store incoming voice messages in personalized mailboxes associated with the user's phone number
 Enable users to forward received messages to another voice mailbox
 send messages to one or more other user voice mailboxes
 Add a voice introduction to a forwarded message
Store voice messages for future delivery
 Make calls to a telephone or paging service to notify the user a message has arrived in his/her mailbox
 Transfer callers to another phone number for personal assistance
 Play different message greetings to different callers.
ii) Video conferencing.
A videoconference (also known as a video teleconference) is a set of interactive telecommunication technologies which allow two or more locations to interact via two-way video and audio transmissions simultaneously. It has also been called visual collaboration and is a type of groupware.​

b) An employee in a business company is charged with the responsibility of putting the company advertisements on the Internet.

• i) State the professional title of the employee. 
• ii) Give an example of software used by this employee to carry out the above task. 

ANSWERS

​(a) What is an internet service  provider?
A company that provides internet services. Connects users to the internet
(b) An employee in a business company is charged with the responsibility of putting the company advertisement on the internet
(i) State the professional title of the employee
 Web administrator, web designer
(ii) Give an example of software used by this employee to carry out the above task
HTML, Dream weaver, MS Front  Page